All pairs of domain combinations at the superfamily level are listed here.
The identification of domain pairs does not account for the possibility of non-contiguous domains. Inserted, or interlaced, domains are seen as having a simple pair ordering.
The links below permit the addition or removal of specific sets of domain combination pairs.
Change the list of genome two-letter codes in the 'Include genomes' box to include domain-pairs from those genomes.
Change the list of genomes in the 'Exclude genomes' box to exclude domain-pairs from those genomes.
List of all two-letter genome codes.
| Superfamily (N) | Superfamily (C) | Number of occurrances | Number unique | |
| beta-beta-alpha zinc fingers | beta-beta-alpha zinc fingers | 442 | 172 |  |
| Immunoglobulin | Immunoglobulin | 375 | 140 |  |
| P-loop containing nucleoside triphosphate hydrolases | P-loop containing nucleoside triphosphate hydrolases | 199 | 58 |  |
| Fibronectin type III | Fibronectin type III | 161 | 95 |  |
| EGF/Laminin | EGF/Laminin | 123 | 97 |  |
| RNA-binding domain, RBD | RNA-binding domain, RBD | 123 | 34 |  |
| Immunoglobulin | Fibronectin type III | 117 | 70 |  |
| Cadherin-like | Cadherin-like | 99 | 25 |  |
| DBL homology domain (DH-domain) | PH domain-like | 99 | 51 |  |
| RING/U-box | B-box zinc-binding domain | 99 | 19 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | C2 domain (Calcium/lipid-binding domain, CaLB) | 82 | 31 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | Glucocorticoid receptor-like (DNA-binding domain) | 82 | 27 |  |
| RING/U-box | Concanavalin A-like lectins/glucanases | 81 | 10 |  |
| Intermediate filament protein, coiled coil region | Intermediate filament protein, coiled coil region | 78 | 13 |  |
| B-box zinc-binding domain | Concanavalin A-like lectins/glucanases | 77 | 9 |  |
| PH domain-like | PH domain-like | 76 | 37 |  |
| TPR-like | TPR-like | 75 | 25 |  |
| ARM repeat | ARM repeat | 73 | 25 |  |
| Second domain of FERM | PH domain-like | 72 | 31 |  |
| Actin-like ATPase domain | Actin-like ATPase domain | 69 | 14 |  |
| SH3-domain | SH3-domain | 69 | 41 |  |
| Concanavalin A-like lectins/glucanases | Concanavalin A-like lectins/glucanases | 68 | 39 |  |
| Ubiquitin-like | PH domain-like | 67 | 29 |  |
| HAD-like | Calcium ATPase, transmembrane domain M | 67 | 12 |  |
| Growth factor receptor domain | EGF/Laminin | 66 | 60 |  |
| PDZ domain-like | PDZ domain-like | 66 | 38 |  |
| PH domain-like | SH3-domain | 61 | 30 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | Nuclear receptor ligand-binding domain | 61 | 6 |  |
| Metal cation-transporting ATPase, ATP-binding domain N | HAD-like | 60 | 7 |  |
| Metal cation-transporting ATPase, ATP-binding domain N | Calcium ATPase, transmembrane domain M | 60 | 7 |  |
| Calcium ATPase, transduction domain A | Calcium ATPase, transmembrane domain M | 60 | 9 |  |
| Calcium ATPase, transduction domain A | HAD-like | 59 | 8 |  |
| BAR/IMD domain-like | SH3-domain | 59 | 14 |  |
| Nicotinic receptor ligand binding domain-like | Neurotransmitter-gated ion-channel transmembrane pore | 58 | 4 |  |
| MHC antigen-recognition domain | Immunoglobulin | 57 | 4 |  |
| POZ domain | Kelch motif | 56 | 7 |  |
| Voltage-gated potassium channels | Voltage-gated potassium channels | 56 | 9 |  |
| Complement control module/SCR domain | Complement control module/SCR domain | 56 | 36 |  |
| Calcium ATPase, transduction domain A | Metal cation-transporting ATPase, ATP-binding domain N | 54 | 5 |  |
| POZ domain | beta-beta-alpha zinc fingers | 54 | 25 |  |
| TSP-1 type 1 repeat | TSP-1 type 1 repeat | 53 | 36 |  |
| Homeodomain-like | Homeodomain-like | 53 | 20 |  |
| Ypt/Rab-GAP domain of gyp1p | Ypt/Rab-GAP domain of gyp1p | 52 | 13 |  |
| EF-hand | EF-hand | 52 | 26 |  |
| Ubiquitin-like | Second domain of FERM | 51 | 20 |  |
| Growth factor receptor domain | Growth factor receptor domain | 50 | 39 |  |
| KRAB domain (Kruppel-associated box) | beta-beta-alpha zinc fingers | 49 | 29 |  |
| Protein kinase-like (PK-like) | PH domain-like | 49 | 27 |  |
| L domain-like | L domain-like | 49 | 26 |  |
| EGF/Laminin | Concanavalin A-like lectins/glucanases | 48 | 36 |  |
| Immunoglobulin | Protein kinase-like (PK-like) | 46 | 30 |  |
| SH3-domain | SH2 domain | 46 | 16 |  |
| Spectrin repeat | Spectrin repeat | 45 | 37 |  |
| GTPase activation domain, GAP | PH domain-like | 45 | 27 |  |
| PH domain-like | SH2 domain | 43 | 24 |  |
| Eukaryotic type KH-domain (KH-domain type I) | Eukaryotic type KH-domain (KH-domain type I) | 43 | 17 |  |
| Sema domain | Plexin repeat | 42 | 19 |  |
| SH2 domain | Protein kinase-like (PK-like) | 40 | 13 |  |
| E set domains | E set domains | 40 | 20 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | PH domain-like | 40 | 22 |  |
| Spermadhesin, CUB domain | Spermadhesin, CUB domain | 40 | 28 |  |
| Cysteine-rich domain | Protein kinase-like (PK-like) | 40 | 22 |  |
| FYVE/PHD zinc finger | FYVE/PHD zinc finger | 39 | 20 |  |
| SH3-domain | Protein kinase-like (PK-like) | 39 | 13 |  |
| Tudor/PWWP/MBT | Tudor/PWWP/MBT | 38 | 19 |  |
| SH3-domain | P-loop containing nucleoside triphosphate hydrolases | 38 | 17 |  |
| Metalloproteases ("zincins"), catalytic domain | Blood coagulation inhibitor (disintegrin) | 37 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | Translation proteins | 37 | 12 |  |
| L domain-like | Immunoglobulin | 37 | 15 |  |
| DBL homology domain (DH-domain) | SH3-domain | 36 | 19 |  |
| ABC transporter transmembrane region | P-loop containing nucleoside triphosphate hydrolases | 36 | 7 |  |
| Fibronectin type III | Protein kinase-like (PK-like) | 36 | 21 |  |
| WW domain | WW domain | 35 | 25 |  |
| WD40 repeat-like | WD40 repeat-like | 35 | 18 |  |
| lambda repressor-like DNA-binding domains | Homeodomain-like | 35 | 12 |  |
| Cyclin-like | Cyclin-like | 33 | 8 |  |
| P-loop containing nucleoside triphosphate hydrolases | PDZ domain-like | 31 | 16 |  |
| Thioredoxin-like | GST C-terminal domain-like | 31 | 5 |  |
| FYVE/PHD zinc finger | Tudor/PWWP/MBT | 31 | 11 |  |
| Retrovirus capsid dimerization domain-like | beta-beta-alpha zinc fingers | 31 | 19 |  |
| (Phosphotyrosine protein) phosphatases II | PH domain-like | 31 | 12 |  |
| Protein kinase-like (PK-like) | ARM repeat | 31 | 19 |  |
| Concanavalin A-like lectins/glucanases | Fibronectin type III | 31 | 17 |  |
| PDZ domain-like | PH domain-like | 31 | 20 |  |
| Cysteine-rich domain | PH domain-like | 30 | 18 |  |
| Ankyrin repeat | Ankyrin repeat | 30 | 25 |  |
| LDL receptor-like module | LDL receptor-like module | 29 | 27 |  |
| Voltage-gated potassium channels | cAMP-binding domain-like | 28 | 5 |  |
| Protein kinase-like (PK-like) | SAM/Pointed domain | 28 | 11 |  |
| C-type lectin-like | C-type lectin-like | 28 | 12 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | Protein kinase-like (PK-like) | 28 | 16 |  |
| P-loop containing nucleoside triphosphate hydrolases | Myosin rod fragments | 28 | 12 |  |
| vWA-like | vWA-like | 27 | 21 |  |
| (Phosphotyrosine protein) phosphatases II | (Phosphotyrosine protein) phosphatases II | 27 | 15 |  |
| Myosin rod fragments | Myosin rod fragments | 27 | 12 |  |
| Fibronectin type III | (Phosphotyrosine protein) phosphatases II | 26 | 18 |  |
| FYVE/PHD zinc finger | Clavaminate synthase-like | 26 | 8 |  |
| FYVE/PHD zinc finger | Bromodomain | 26 | 15 |  |
| SAM/Pointed domain | SAM/Pointed domain | 24 | 11 |  |
| Periplasmic binding protein-like I | Periplasmic binding protein-like II | 24 | 7 |  |
| Tubulin nucleotide-binding domain-like | Tubulin C-terminal domain-like | 24 | 1 |  |
| PYP-like sensor domain (PAS domain) | PYP-like sensor domain (PAS domain) | 24 | 8 |  |
| Riboflavin synthase domain-like | Ferredoxin reductase-like, C-terminal NADP-linked domain | 24 | 12 |  |
| Thioredoxin-like | Thioredoxin-like | 24 | 9 |  |
| PGBD-like | Metalloproteases ("zincins"), catalytic domain | 24 | 6 |  |
| Nucleotide-diphospho-sugar transferases | Ricin B-like lectins | 24 | 2 |  |
| Integrin domains | Integrin domains | 24 | 8 |  |
| PDZ domain-like | SH3-domain | 23 | 10 |  |
| Cysteine-rich domain | Cysteine-rich domain | 23 | 12 |  |
| P-loop containing nucleoside triphosphate hydrolases | EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain | 23 | 4 |  |
| Translation proteins | EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain | 23 | 4 |  |
| RING/U-box | RING/U-box | 23 | 13 |  |
| POZ domain | Voltage-gated potassium channels | 23 | 4 |  |
| GroES-like | NAD(P)-binding Rossmann-fold domains | 23 | 5 |  |
| "Winged helix" DNA-binding domain | "Winged helix" DNA-binding domain | 23 | 13 |  |
| Protein kinase-like (PK-like) | KA1-like | 23 | 3 |  |
| BAR/IMD domain-like | GTPase activation domain, GAP | 23 | 7 |  |
| Metalloproteases ("zincins"), catalytic domain | Hemopexin-like domain | 23 | 5 |  |
| EF-hand | C2 domain (Calcium/lipid-binding domain, CaLB) | 23 | 13 |  |
| Integrin alpha N-terminal domain | Integrin domains | 23 | 7 |  |
| Metalloproteases ("zincins"), catalytic domain | TSP-1 type 1 repeat | 23 | 13 |  |
| Protein kinase-like (PK-like) | Protein kinase-like (PK-like) | 22 | 12 |  |
| PH domain-like | EF-hand | 22 | 11 |  |
| ABC transporter transmembrane region | ABC transporter transmembrane region | 22 | 4 |  |
| Chromo domain-like | Chromo domain-like | 21 | 6 |  |
| Ubiquitin-like | Protein kinase-like (PK-like) | 21 | 10 |  |
| HLH, helix-loop-helix DNA-binding domain | PYP-like sensor domain (PAS domain) | 21 | 6 |  |
| PGBD-like | Hemopexin-like domain | 21 | 4 |  |
| PH domain-like | ArfGap/RecO-like zinc finger | 21 | 12 |  |
| Growth factor receptor domain | Protein kinase-like (PK-like) | 21 | 8 |  |
| Calponin-homology domain, CH-domain | Spectrin repeat | 21 | 16 |  |
| GTPase activation domain, GAP | SH3-domain | 20 | 9 |  |
| FAD/NAD(P)-binding domain | FAD-linked reductases, C-terminal domain | 20 | 7 |  |
| Nucleotidyltransferase | PAP/OAS1 substrate-binding domain | 20 | 13 |  |
| F-box domain | RNI-like | 20 | 5 |  |
| Galactose-binding domain-like | Protein kinase-like (PK-like) | 20 | 7 |  |
| EF-hand | PLC-like phosphodiesterases | 20 | 12 |  |
| Transducin (alpha subunit), insertion domain | P-loop containing nucleoside triphosphate hydrolases | 20 | 3 |  |
| TNF receptor-like | TNF receptor-like | 19 | 9 |  |
| Growth factor receptor domain | Fibronectin type III | 19 | 9 |  |
| Bromodomain | Bromodomain | 19 | 11 |  |
| PLC-like phosphodiesterases | C2 domain (Calcium/lipid-binding domain, CaLB) | 19 | 11 |  |
| PH domain-like | Ankyrin repeat | 19 | 10 |  |
| L domain-like | Fibronectin type III | 19 | 9 |  |
| (Trans)glycosidases | Glycosyl hydrolase domain | 19 | 9 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | GTPase activation domain, GAP | 18 | 10 |  |
| Ankyrin repeat | SAM/Pointed domain | 18 | 9 |  |
| Sema domain | E set domains | 18 | 10 |  |
| P-loop containing nucleoside triphosphate hydrolases | Interferon-induced guanylate-binding protein 1 (GBP1), C-terminal domain | 18 | 3 |  |
| L27 domain | PDZ domain-like | 18 | 9 |  |
| Leukotriene A4 hydrolase N-terminal domain | Metalloproteases ("zincins"), catalytic domain | 18 | 5 |  |
| Integrin domains | vWA-like | 18 | 8 |  |
| Growth factor receptor domain | Concanavalin A-like lectins/glucanases | 18 | 16 |  |
| Ankyrin repeat | SOCS box-like | 18 | 4 |  |
| SRCR-like | SRCR-like | 18 | 14 |  |
| ARM repeat | Formin homology 2 domain (FH2 domain) | 18 | 4 |  |
| Sema domain | GTPase activation domain, GAP | 17 | 8 |  |
| Chromo domain-like | P-loop containing nucleoside triphosphate hydrolases | 17 | 5 |  |
| Spectrin repeat | EF-hand | 17 | 11 |  |
| Galactose-binding domain-like | Growth factor receptor domain | 17 | 8 |  |
| Hormone receptor domain | Family A G protein-coupled receptor-like | 17 | 5 |  |
| BAR/IMD domain-like | PH domain-like | 17 | 7 |  |
| Voltage-gated potassium channels | E set domains | 17 | 3 |  |
| beta-beta-alpha zinc fingers | Homeodomain-like | 17 | 12 |  |
| Acyl-CoA dehydrogenase NM domain-like | Acyl-CoA dehydrogenase C-terminal domain-like | 17 | 8 |  |
| Plexin repeat | E set domains | 17 | 10 |  |
| FnI-like domain | FnI-like domain | 17 | 13 |  |
| p53-like transcription factors | E set domains | 17 | 4 |  |
| ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | Ribosomal protein S5 domain 2-like | 17 | 9 |  |
| Cadherin-like | Concanavalin A-like lectins/glucanases | 16 | 9 |  |
| TNF receptor-like | DEATH domain | 16 | 6 |  |
| Spermadhesin, CUB domain | Complement control module/SCR domain | 16 | 10 |  |
| NAD(P)-binding Rossmann-fold domains | 6-phosphogluconate dehydrogenase C-terminal domain-like | 16 | 6 |  |
| EF-hand | RING/U-box | 16 | 8 |  |
| YWTD domain | EGF/Laminin | 16 | 14 |  |
| Snake toxin-like | Protein kinase-like (PK-like) | 16 | 3 |  |
| E set domains | GTPase activation domain, GAP | 16 | 8 |  |
| Concanavalin A-like lectins/glucanases | Immunoglobulin | 16 | 7 |  |
| Calponin-homology domain, CH-domain | EF-hand | 16 | 7 |  |
| Kringle-like | Kringle-like | 16 | 11 |  |
| Plexin repeat | GTPase activation domain, GAP | 16 | 8 |  |
| ArfGap/RecO-like zinc finger | Ankyrin repeat | 16 | 8 |  |
| UBA-like | Ubiquitin-like | 16 | 10 |  |
| Terpenoid cyclases/Protein prenyltransferases | Alpha-macroglobulin receptor domain | 16 | 5 |  |
| Sec7 domain | PH domain-like | 16 | 3 |  |
| YWTD domain | LDL receptor-like module | 15 | 14 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | WW domain | 15 | 9 |  |
| Glutathione synthetase ATP-binding domain-like | PreATP-grasp domain | 15 | 12 |  |
| PH domain-like | PLC-like phosphodiesterases | 15 | 8 |  |
| Protein kinase-like (PK-like) | PDZ domain-like | 15 | 5 |  |
| Galactose-binding domain-like | SAM/Pointed domain | 15 | 6 |  |
| Ubiquitin-like | Ras GEF | 15 | 9 |  |
| GroEL equatorial domain-like | GroEL apical domain-like | 15 | 3 |  |
| RNA-binding domain, RBD | NTF2-like | 15 | 5 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | Homeodomain-like | 15 | 4 |  |
| PH domain-like | WD40 repeat-like | 15 | 7 |  |
| ARM repeat | PH domain-like | 15 | 8 |  |
| Fibronectin type III | SAM/Pointed domain | 15 | 6 |  |
| GroEL-intermediate domain like | GroEL apical domain-like | 15 | 2 |  |
| Ankyrin repeat | SH3-domain | 15 | 7 |  |
| dsRNA-binding domain-like | dsRNA-binding domain-like | 15 | 11 |  |
| Cysteine proteinases | Calpain large subunit, middle domain (domain III) | 15 | 5 |  |
| RNA-binding domain, RBD | L domain-like | 14 | 4 |  |
| P-loop containing nucleoside triphosphate hydrolases | DEATH domain | 14 | 9 |  |
| Spermadhesin, CUB domain | EGF/Laminin | 14 | 11 |  |
| Actin depolymerizing proteins | Actin depolymerizing proteins | 14 | 8 |  |
| Nucleotidylyl transferase | Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | 14 | 9 |  |
| SAM/Pointed domain | "Winged helix" DNA-binding domain | 14 | 6 |  |
| L domain-like | Protein kinase-like (PK-like) | 14 | 6 |  |
| PDZ domain-like | Ubiquitin-like | 14 | 10 |  |
| EF-hand | SH3-domain | 14 | 10 |  |
| WW domain | Hect, E3 ligase catalytic domain | 14 | 10 |  |
| cAMP-binding domain-like | cAMP-binding domain-like | 14 | 8 |  |
| Nucleotide cyclase | Nucleotide cyclase | 14 | 3 |  |
| CCCH zinc finger | CCCH zinc finger | 14 | 9 |  |
| CRAL/TRIO N-terminal domain | CRAL/TRIO domain | 14 | 7 |  |
| RING/U-box | Cysteine proteinases | 14 | 7 |  |
| FYVE/PHD zinc finger | SET domain | 14 | 8 |  |
| EGF/Laminin | Trypsin-like serine proteases | 14 | 9 |  |
| Bactericidal permeability-increasing protein, BPI | Bactericidal permeability-increasing protein, BPI | 14 | 3 |  |
| Cysteine-rich domain | C2 domain (Calcium/lipid-binding domain, CaLB) | 13 | 10 |  |
| vWA-like | EGF/Laminin | 13 | 9 |  |
| Ankyrin repeat | P-loop containing nucleoside triphosphate hydrolases | 13 | 10 |  |
| Nucleic acid-binding proteins | Nucleic acid-binding proteins | 13 | 9 |  |
| P-loop containing nucleoside triphosphate hydrolases | PH domain-like | 13 | 7 |  |
| Multidrug efflux transporter AcrB transmembrane domain | Multidrug efflux transporter AcrB transmembrane domain | 13 | 2 |  |
| L domain-like | NTF2-like | 13 | 3 |  |
| EGF/Laminin | Complement control module/SCR domain | 13 | 12 |  |
| Class II aaRS and biotin synthetases | Class II aaRS ABD-related | 13 | 8 |  |
| Cysteine proteinases | EF-hand | 13 | 4 |  |
| WD40 repeat-like | Quinoprotein alcohol dehydrogenase-like | 13 | 11 |  |
| Galactose-binding domain-like | Fibronectin type III | 13 | 5 |  |
| UBA-like | RNA-binding domain, RBD | 13 | 2 |  |
| p53-like transcription factors | p53 tetramerization domain | 13 | 2 |  |
| Transglutaminase, two C-terminal domains | Transglutaminase, two C-terminal domains | 13 | 2 |  |
| L domain-like | Growth factor receptor domain | 13 | 7 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | ARM repeat | 13 | 7 |  |
| Composite domain of metallo-dependent hydrolases | Metallo-dependent hydrolases | 13 | 6 |  |
| SH2 domain | SH2 domain | 13 | 7 |  |
| TSP-1 type 1 repeat | Growth factor receptor domain | 13 | 8 |  |
| BRCT domain | BRCT domain | 13 | 9 |  |
| Ubiquitin-like | Ubiquitin-like | 13 | 10 |  |
| P-loop containing nucleoside triphosphate hydrolases | RNI-like | 13 | 6 |  |
| Cysteine proteinases | Transglutaminase, two C-terminal domains | 13 | 2 |  |
| GroEL equatorial domain-like | GroEL-intermediate domain like | 13 | 1 |  |
| E set domains | Transglutaminase, two C-terminal domains | 13 | 2 |  |
| A DNA-binding domain in eukaryotic transcription factors | Leucine zipper domain | 13 | 3 |  |
| "Winged helix" DNA-binding domain | E2F-DP heterodimerization region | 13 | 3 |  |
| E set domains | Cysteine proteinases | 13 | 2 |  |
| C-type lectin-like | EGF/Laminin | 13 | 12 |  |
| WD40 repeat-like | ARM repeat | 12 | 9 |  |
| Retrovirus capsid dimerization domain-like | KRAB domain (Kruppel-associated box) | 12 | 8 |  |
| BEACH domain | WD40 repeat-like | 12 | 8 |  |
| NTF2-like | UBA-like | 12 | 2 |  |
| ENTH/VHS domain | GAT-like domain | 12 | 3 |  |
| DBL homology domain (DH-domain) | C2 domain (Calcium/lipid-binding domain, CaLB) | 12 | 6 |  |
| PDZ domain-like | Glucocorticoid receptor-like (DNA-binding domain) | 12 | 6 |  |
| Immunoglobulin | C-type lectin-like | 12 | 6 |  |
| POZ domain | POZ domain | 12 | 9 |  |
| alpha-catenin/vinculin-like | alpha-catenin/vinculin-like | 12 | 8 |  |
| SMAD MH1 domain | SMAD/FHA domain | 12 | 4 |  |
| Cysteine-rich domain | GTPase activation domain, GAP | 12 | 7 |  |
| Serine protease inhibitors | Serine protease inhibitors | 12 | 7 |  |
| PH domain-like | Oxysterol-binding protein-like | 12 | 4 |  |
| Cysteine-rich domain | NAD kinase/diacylglycerol kinase-like | 12 | 6 |  |
| Formate/glycerate dehydrogenase catalytic domain-like | NAD(P)-binding Rossmann-fold domains | 12 | 6 |  |
| Protein kinase-like (PK-like) | Ankyrin repeat | 12 | 8 |  |
| Ankyrin repeat | DEATH domain | 12 | 8 |  |
| Intermediate filament protein, coiled coil region | Prefoldin | 12 | 5 |  |
| FAD/NAD(P)-binding domain | FAD/NAD(P)-binding domain | 12 | 4 |  |
| L domain-like | Toll/Interleukin receptor TIR domain | 12 | 7 |  |
| Nucleic acid-binding proteins | P-loop containing nucleoside triphosphate hydrolases | 12 | 1 |  |
| EGF/Laminin | LDL receptor-like module | 12 | 11 |  |
| YWTD domain | Growth factor receptor domain | 12 | 12 |  |
| L27 domain | P-loop containing nucleoside triphosphate hydrolases | 12 | 6 |  |
| Growth factor receptor domain | SAM/Pointed domain | 11 | 4 |  |
| Zn-dependent exopeptidases | Carboxypeptidase regulatory domain-like | 11 | 6 |  |
| FYVE/PHD zinc finger | RING/U-box | 11 | 6 |  |
| Actin-like ATPase domain | Heat shock protein 70kD (HSP70), C-terminal subdomain | 11 | 3 |  |
| RING/U-box | TRAF domain-like | 11 | 9 |  |
| Immunoglobulin | (Phosphotyrosine protein) phosphatases II | 11 | 7 |  |
| ARM repeat | Clathrin adaptor appendage domain | 11 | 5 |  |
| B-box zinc-binding domain | Fibronectin type III | 11 | 4 |  |
| E set domains | Terpenoid cyclases/Protein prenyltransferases | 11 | 3 |  |
| Aminoacid dehydrogenase-like, N-terminal domain | NAD(P)-binding Rossmann-fold domains | 11 | 5 |  |
| Phospholipase D/nuclease | Phospholipase D/nuclease | 11 | 5 |  |
| SRCR-like | Trypsin-like serine proteases | 11 | 7 |  |
| Calpain large subunit, middle domain (domain III) | EF-hand | 11 | 2 |  |
| Rhodanese/Cell cycle control phosphatase | (Phosphotyrosine protein) phosphatases II | 11 | 3 |  |
| vWA-like | Fibronectin type III | 11 | 10 |  |
| L domain-like | UBA-like | 11 | 1 |  |
| Actin-like ATPase domain | Heat shock protein 70kD (HSP70), peptide-binding domain | 11 | 4 |  |
| Second domain of FERM | Protein kinase-like (PK-like) | 11 | 6 |  |
| NAD(P)-binding Rossmann-fold domains | Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain | 11 | 5 |  |
| YWTD domain | YWTD domain | 11 | 10 |  |
| L27 domain | SH3-domain | 11 | 5 |  |
| P-loop containing nucleoside triphosphate hydrolases | SMAD/FHA domain | 11 | 7 |  |
| Ubiquitin-like | Cysteine-rich domain | 11 | 7 |  |
| E set domains | Alpha-macroglobulin receptor domain | 11 | 3 |  |
| TSP-1 type 1 repeat | Immunoglobulin | 10 | 6 |  |
| Thiolase-like | Thiolase-like | 10 | 4 |  |
| L domain-like | Family A G protein-coupled receptor-like | 10 | 5 |  |
| Ribonuclease H-like | DNA/RNA polymerases | 10 | 6 |  |
| F-box domain | WD40 repeat-like | 10 | 3 |  |
| SAM/Pointed domain | PH domain-like | 10 | 6 |  |
| Transcription factor STAT-4 N-domain | SH2 domain | 10 | 1 |  |
| PX domain | BAR/IMD domain-like | 10 | 3 |  |
| Sema domain | Immunoglobulin | 10 | 3 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | Hect, E3 ligase catalytic domain | 10 | 7 |  |
| LDL receptor-like module | Spermadhesin, CUB domain | 10 | 7 |  |
| LDL receptor-like module | Trypsin-like serine proteases | 10 | 7 |  |
| Flavoproteins | Riboflavin synthase domain-like | 10 | 7 |  |
| MFS general substrate transporter | Kazal-type serine protease inhibitors | 10 | 2 |  |
| Transcription factor STAT-4 N-domain | STAT | 10 | 1 |  |
| Galactose-binding domain-like | (Trans)glycosidases | 10 | 3 |  |
| C-type lectin-like | Complement control module/SCR domain | 10 | 9 |  |
| Spectrin repeat | PH domain-like | 10 | 9 |  |
| Flavoproteins | Ferredoxin reductase-like, C-terminal NADP-linked domain | 10 | 7 |  |
| Plexin repeat | vWA-like | 10 | 6 |  |
| ARM repeat | Concanavalin A-like lectins/glucanases | 10 | 9 |  |
| Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain | Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain | 10 | 8 |  |
| P-loop containing nucleoside triphosphate hydrolases | Tropomyosin | 10 | 5 |  |
| Clc chloride channel | CBS-domain pair | 10 | 2 |  |
| Plexin repeat | EGF/Laminin | 10 | 6 |  |
| POZ domain | Galactose oxidase, central domain | 10 | 5 |  |
| PYP-like sensor domain (PAS domain) | Voltage-gated potassium channels | 10 | 3 |  |
| "Winged helix" DNA-binding domain | RNA-binding domain, RBD | 10 | 4 |  |
| (Phosphotyrosine protein) phosphatases II | C2 domain (Calcium/lipid-binding domain, CaLB) | 10 | 6 |  |
| Kelch motif | Kelch motif | 10 | 3 |  |
| Transcription factor STAT-4 N-domain | p53-like transcription factors | 10 | 1 |  |
| Plexin repeat | Immunoglobulin | 10 | 3 |  |
| Growth factor receptor domain | LDL receptor-like module | 10 | 10 |  |
| Kazal-type serine protease inhibitors | EF-hand | 10 | 7 |  |
| STAT | SH2 domain | 10 | 1 |  |
| Calponin-homology domain, CH-domain | PH domain-like | 10 | 6 |  |
| "Winged helix" DNA-binding domain | SMAD/FHA domain | 10 | 2 |  |
| HMG-box | HMG-box | 10 | 5 |  |
| Kringle-like | Trypsin-like serine proteases | 10 | 10 |  |
| Galactose-binding domain-like | Galactose-binding domain-like | 10 | 8 |  |
| Cadherin-like | EGF/Laminin | 10 | 7 |  |
| P-loop containing nucleoside triphosphate hydrolases | BRK domain-like | 10 | 3 |  |
| Protease propeptides/inhibitors | Zn-dependent exopeptidases | 10 | 1 |  |
| STAT | p53-like transcription factors | 10 | 1 |  |
| RING/U-box | Fibronectin type III | 10 | 3 |  |
| p53-like transcription factors | SH2 domain | 10 | 1 |  |
| Ubiquitin-like | ARM repeat | 10 | 6 |  |
| P-loop containing nucleoside triphosphate hydrolases | Ribosomal protein S5 domain 2-like | 10 | 4 |  |
| SET domain | beta-beta-alpha zinc fingers | 10 | 7 |  |
| Integrin domains | EGF/Laminin | 9 | 5 |  |
| EGF/Laminin | Galactose-binding domain-like | 9 | 4 |  |
| PX domain | SH3-domain | 9 | 7 |  |
| Spectrin repeat | Plakin repeat | 9 | 9 |  |
| SAM/Pointed domain | GTPase activation domain, GAP | 9 | 4 |  |
| GLA-domain | Trypsin-like serine proteases | 9 | 5 |  |
| Immunoglobulin | Toll/Interleukin receptor TIR domain | 9 | 5 |  |
| RNI-like | RNI-like | 9 | 4 |  |
| P-loop containing nucleoside triphosphate hydrolases | post-AAA+ oligomerization domain-like | 9 | 4 |  |
| PH domain-like | BEACH domain | 9 | 6 |  |
| DEATH domain | DEATH domain | 9 | 4 |  |
| Cullin homology domain | "Winged helix" DNA-binding domain | 9 | 3 |  |
| Ubiquitin-like | GTPase activation domain, GAP | 9 | 5 |  |
| vWA-like | Integrin beta tail domain | 9 | 5 |  |
| Plexin repeat | Integrin beta tail domain | 9 | 5 |  |
| vWA-like | Integrin alpha N-terminal domain | 9 | 3 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | vWA-like | 9 | 1 |  |
| EF-G C-terminal domain-like | EF-G C-terminal domain-like | 9 | 5 |  |
| PAZ domain | Ribonuclease H-like | 9 | 3 |  |
| WD40 repeat-like | RING/U-box | 9 | 8 |  |
| Chaperone J-domain | HSP40/DnaJ peptide-binding domain | 9 | 4 |  |
| Subtilisin-like | Galactose-binding domain-like | 9 | 6 |  |
| Plexin repeat | Integrin domains | 9 | 5 |  |
| Galactose mutarotase-like | (Trans)glycosidases | 9 | 5 |  |
| RCC1/BLIP-II | Hect, E3 ligase catalytic domain | 9 | 3 |  |
| Plakin repeat | Plakin repeat | 9 | 9 |  |
| DUSP-like | Cysteine proteinases | 9 | 6 |  |
| BAR/IMD domain-like | ArfGap/RecO-like zinc finger | 9 | 4 |  |
| Heat shock protein 70kD (HSP70), peptide-binding domain | Heat shock protein 70kD (HSP70), C-terminal subdomain | 9 | 2 |  |
| TB module/8-cys domain | TB module/8-cys domain | 9 | 8 |  |
| MAST3 pre-PK domain-like | PDZ domain-like | 9 | 2 |  |
| MAST3 pre-PK domain-like | Protein kinase-like (PK-like) | 9 | 2 |  |
| Regulator of G-protein signaling, RGS | PH domain-like | 9 | 5 |  |
| P-loop containing nucleoside triphosphate hydrolases | FYVE/PHD zinc finger | 9 | 5 |  |
| EGF/Laminin | Integrin beta tail domain | 9 | 5 |  |
| P-loop containing nucleoside triphosphate hydrolases | EF-hand | 9 | 2 |  |
| SH2 domain | SOCS box-like | 9 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | WD40 repeat-like | 9 | 8 |  |
| ARID-like | Clavaminate synthase-like | 9 | 5 |  |
| DEATH domain | Protein kinase-like (PK-like) | 9 | 6 |  |
| BAR/IMD domain-like | Ankyrin repeat | 9 | 4 |  |
| TB module/8-cys domain | Growth factor receptor domain | 9 | 8 |  |
| PH domain-like | "Winged helix" DNA-binding domain | 9 | 3 |  |
| Galactose-binding domain-like | Concanavalin A-like lectins/glucanases | 9 | 3 |  |
| LuxS/MPP-like metallohydrolase | LuxS/MPP-like metallohydrolase | 9 | 4 |  |
| Ribosomal protein S5 domain 2-like | GHMP Kinase, C-terminal domain | 9 | 3 |  |
| Kazal-type serine protease inhibitors | Kazal-type serine protease inhibitors | 9 | 8 |  |
| PX domain | Protein kinase-like (PK-like) | 9 | 7 |  |
| Ubiquitin-like | C2 domain (Calcium/lipid-binding domain, CaLB) | 9 | 5 |  |
| Thiamin diphosphate-binding fold (THDP-binding) | Thiamin diphosphate-binding fold (THDP-binding) | 9 | 3 |  |
| DEATH domain | Caspase-like | 9 | 4 |  |
| PYP-like sensor domain (PAS domain) | cAMP-binding domain-like | 9 | 2 |  |
| EGF/Laminin | TB module/8-cys domain | 9 | 8 |  |
| Clavaminate synthase-like | Tudor/PWWP/MBT | 8 | 2 |  |
| Glutathione synthetase ATP-binding domain-like | Rudiment single hybrid motif | 8 | 6 |  |
| TRAF domain-like | TRAF domain-like | 8 | 7 |  |
| Cullin repeat-like | Cullin homology domain | 8 | 2 |  |
| FAD/NAD(P)-binding domain | FAD/NAD-linked reductases, dimerisation (C-terminal) domain | 8 | 5 |  |
| Immunoglobulin | DEATH domain | 8 | 3 |  |
| HSP40/DnaJ peptide-binding domain | HSP40/DnaJ peptide-binding domain | 8 | 3 |  |
| Periplasmic binding protein-like I | Voltage-gated potassium channels | 8 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | Smc hinge domain | 8 | 5 |  |
| beta-sandwich domain of Sec23/24 | Helical domain of Sec23/24 | 8 | 5 |  |
| vWA-like | Concanavalin A-like lectins/glucanases | 8 | 7 |  |
| CoA-dependent acyltransferases | CoA-dependent acyltransferases | 8 | 1 |  |
| Surp module (SWAP domain) | Surp module (SWAP domain) | 8 | 3 |  |
| Serum albumin-like | Serum albumin-like | 8 | 3 |  |
| Galactose mutarotase-like | Glycosyl hydrolase domain | 8 | 4 |  |
| Myosin rod fragments | Tropomyosin | 8 | 3 |  |
| Spermadhesin, CUB domain | Trypsin-like serine proteases | 8 | 7 |  |
| Regulator of G-protein signaling, RGS | Protein kinase-like (PK-like) | 8 | 3 |  |
| Translation proteins | EF-G C-terminal domain-like | 8 | 4 |  |
| PreATP-grasp domain | Rudiment single hybrid motif | 8 | 6 |  |
| Cupredoxins | Peptidylarginine deiminase Pad4, middle domain | 8 | 1 |  |
| GAF domain-like | HD-domain/PDEase-like | 8 | 4 |  |
| beta-sandwich domain of Sec23/24 | C-terminal, gelsolin-like domain of Sec23/24 | 8 | 5 |  |
| RING/U-box | UBA-like | 8 | 5 |  |
| Cupredoxins | Pentein | 8 | 1 |  |
| Tudor/PWWP/MBT | SAM/Pointed domain | 8 | 5 |  |
| SEA domain | Trypsin-like serine proteases | 8 | 4 |  |
| Integrin domains | Integrin beta tail domain | 8 | 4 |  |
| NAD(P)-binding Rossmann-fold domains | LDH C-terminal domain-like | 8 | 3 |  |
| Ypt/Rab-GAP domain of gyp1p | EF-hand | 8 | 1 |  |
| SNARE-like | Second domain of Mu2 adaptin subunit (ap50) of ap2 adaptor | 8 | 2 |  |
| PH domain-like | Ypt/Rab-GAP domain of gyp1p | 8 | 5 |  |
| Serine protease inhibitors | FnI-like domain | 8 | 7 |  |
| PH domain-like | Vasodilator-stimulated phosphoprotein, VASP, tetramerisation domain | 8 | 1 |  |
| Voltage-gated potassium channels | Small-conductance potassium channel | 8 | 2 |  |
| Ubiquitin-like | RING/U-box | 8 | 4 |  |
| ARID-like | FYVE/PHD zinc finger | 8 | 4 |  |
| Ubiquitin-like | Cysteine proteinases | 8 | 6 |  |
| DPP6 N-terminal domain-like | alpha/beta-Hydrolases | 8 | 2 |  |
| Helical domain of Sec23/24 | C-terminal, gelsolin-like domain of Sec23/24 | 8 | 5 |  |
| vWA-like | Helical domain of Sec23/24 | 8 | 5 |  |
| EF-hand | SH2 domain | 8 | 5 |  |
| SH3-domain | ARM repeat | 8 | 2 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | SH2 domain | 8 | 5 |  |
| HLH, helix-loop-helix DNA-binding domain | Orange domain-like | 8 | 2 |  |
| PH domain-like | FYVE/PHD zinc finger | 8 | 6 |  |
| Cullin repeat-like | "Winged helix" DNA-binding domain | 8 | 2 |  |
| SH3-domain | C2 domain (Calcium/lipid-binding domain, CaLB) | 8 | 5 |  |
| vWA-like | C-terminal, gelsolin-like domain of Sec23/24 | 8 | 5 |  |
| DBL homology domain (DH-domain) | PDZ domain-like | 8 | 4 |  |
| RNA-binding domain, RBD | Ran binding protein zinc finger-like | 8 | 3 |  |
| Peptidylarginine deiminase Pad4, middle domain | Pentein | 8 | 1 |  |
| Voltage-gated potassium channels | Periplasmic binding protein-like II | 8 | 2 |  |
| ClpP/crotonase | ClpP/crotonase | 8 | 5 |  |
| EF-hand | Cysteine-rich domain | 8 | 2 |  |
| GLA-domain | EGF/Laminin | 8 | 4 |  |
| beta-sandwich domain of Sec23/24 | vWA-like | 8 | 5 |  |
| "Winged helix" DNA-binding domain | Ubiquitin-like | 8 | 5 |  |
| P-loop containing nucleoside triphosphate hydrolases | EF-G C-terminal domain-like | 8 | 4 |  |
| EF-G C-terminal domain-like | Ribosomal protein S5 domain 2-like | 8 | 4 |  |
| Bromodomain | Tudor/PWWP/MBT | 8 | 3 |  |
| Tudor/PWWP/MBT | SET domain | 8 | 4 |  |
| Growth factor receptor domain | Thyroglobulin type-1 domain | 7 | 4 |  |
| PDZ domain-like | "Winged helix" DNA-binding domain | 7 | 4 |  |
| Zn-dependent exopeptidases | Transferrin receptor-like dimerisation domain | 7 | 2 |  |
| ARM repeat | Subdomain of clathrin and coatomer appendage domain | 7 | 2 |  |
| SH3-domain | SAM/Pointed domain | 7 | 4 |  |
| Concanavalin A-like lectins/glucanases | TSP type-3 repeat | 7 | 5 |  |
| Nitric oxide (NO) synthase oxygenase domain | Riboflavin synthase domain-like | 7 | 4 |  |
| CO dehydrogenase flavoprotein C-terminal domain-like | Molybdenum cofactor-binding domain | 7 | 1 |  |
| CO dehydrogenase ISP C-domain like | CO dehydrogenase flavoprotein C-terminal domain-like | 7 | 1 |  |
| GST C-terminal domain-like | Nucleotidylyl transferase | 7 | 4 |  |
| Protease propeptides/inhibitors | Subtilisin-like | 7 | 6 |  |
| Protein kinase-like (PK-like) | NTF2-like | 7 | 2 |  |
| Calponin-homology domain, CH-domain | GAS2 domain-like | 7 | 4 |  |
| FF domain | FF domain | 7 | 4 |  |
| Phosphoglucomutase, first 3 domains | Phosphoglucomutase, first 3 domains | 7 | 3 |  |
| Plexin repeat | Plexin repeat | 7 | 5 |  |
| FnI-like domain | TSP-1 type 1 repeat | 7 | 4 |  |
| CO dehydrogenase ISP C-domain like | FAD-binding/transporter-associated domain-like | 7 | 1 |  |
| (Trans)glycosidases | (Trans)glycosidases | 7 | 6 |  |
| PreATP-grasp domain | Single hybrid motif | 7 | 5 |  |
| ValRS/IleRS/LeuRS editing domain | Nucleotidylyl transferase | 7 | 4 |  |
| GAF domain-like | GAF domain-like | 7 | 3 |  |
| Actin depolymerizing proteins | C-terminal, gelsolin-like domain of Sec23/24 | 7 | 4 |  |
| Cupredoxins | Cupredoxins | 7 | 6 |  |
| EF-hand | Mitochondrial carrier | 7 | 3 |  |
| Protein kinase-like (PK-like) | P-loop containing nucleoside triphosphate hydrolases | 7 | 5 |  |
| Conserved domain common to transcription factors TFIIS, elongin A, CRSP70 | Elongation factor TFIIS domain 2 | 7 | 3 |  |
| Nitric oxide (NO) synthase oxygenase domain | Flavoproteins | 7 | 4 |  |
| Translation proteins | Ribosomal protein S5 domain 2-like | 7 | 3 |  |
| Complement control module/SCR domain | Trypsin-like serine proteases | 7 | 5 |  |
| ValRS/IleRS/LeuRS editing domain | Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | 7 | 4 |  |
| 2Fe-2S ferredoxin-like | FAD-binding/transporter-associated domain-like | 7 | 1 |  |
| LDL receptor-like module | SRCR-like | 7 | 4 |  |
| Sec7 domain | ARM repeat | 7 | 3 |  |
| TPR-like | ARM repeat | 7 | 3 |  |
| RNA-binding domain, RBD | ENTH/VHS domain | 7 | 2 |  |
| CO dehydrogenase molybdoprotein N-domain-like | Molybdenum cofactor-binding domain | 7 | 1 |  |
| EF-hand | Thyroglobulin type-1 domain | 7 | 5 |  |
| 2Fe-2S ferredoxin-like | Molybdenum cofactor-binding domain | 7 | 1 |  |
| FAD-binding/transporter-associated domain-like | Molybdenum cofactor-binding domain | 7 | 1 |  |
| WW domain | FF domain | 7 | 4 |  |
| 2Fe-2S ferredoxin-like | CO dehydrogenase molybdoprotein N-domain-like | 7 | 1 |  |
| Nucleotidyltransferase | Nucleotidyltransferase | 7 | 5 |  |
| Regulator of G-protein signaling, RGS | Ubiquitin-like | 7 | 3 |  |
| Lipase/lipooxygenase domain (PLAT/LH2 domain) | Lipoxigenase | 7 | 1 |  |
| WD40 repeat-like | Bromodomain | 7 | 4 |  |
| Metalloproteases ("zincins"), catalytic domain | ARM repeat | 7 | 2 |  |
| Leukotriene A4 hydrolase N-terminal domain | ARM repeat | 7 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | "Winged helix" DNA-binding domain | 7 | 7 |  |
| CO dehydrogenase ISP C-domain like | CO dehydrogenase molybdoprotein N-domain-like | 7 | 1 |  |
| alpha/beta-Hydrolases | Lipase/lipooxygenase domain (PLAT/LH2 domain) | 7 | 1 |  |
| Concanavalin A-like lectins/glucanases | Fibrinogen C-terminal domain-like | 7 | 2 |  |
| Spectrin repeat | SH3-domain | 7 | 6 |  |
| P-loop containing nucleoside triphosphate hydrolases | PUA domain-like | 7 | 3 |  |
| Clathrin adaptor appendage domain | Subdomain of clathrin and coatomer appendage domain | 7 | 2 |  |
| PAP/OAS1 substrate-binding domain | PAP/OAS1 substrate-binding domain | 7 | 5 |  |
| 2Fe-2S ferredoxin-like | CO dehydrogenase flavoprotein C-terminal domain-like | 7 | 1 |  |
| Second domain of FERM | PDZ domain-like | 7 | 5 |  |
| 2Fe-2S ferredoxin-like | CO dehydrogenase ISP C-domain like | 7 | 1 |  |
| Rudiment single hybrid motif | Single hybrid motif | 7 | 5 |  |
| Nitric oxide (NO) synthase oxygenase domain | Ferredoxin reductase-like, C-terminal NADP-linked domain | 7 | 4 |  |
| DBL homology domain (DH-domain) | GTPase activation domain, GAP | 7 | 3 |  |
| CRAL/TRIO domain | Spectrin repeat | 7 | 6 |  |
| CCCH zinc finger | RING/U-box | 7 | 6 |  |
| DEATH domain | RNI-like | 7 | 4 |  |
| Phosphoglucomutase, first 3 domains | Phosphoglucomutase, C-terminal domain | 7 | 3 |  |
| Hedgehog/DD-peptidase | Hedgehog/intein (Hint) domain | 7 | 1 |  |
| DNase I-like | RNA-binding domain, RBD | 7 | 1 |  |
| FAD-binding/transporter-associated domain-like | CO dehydrogenase molybdoprotein N-domain-like | 7 | 1 |  |
| Chromo domain-like | BRK domain-like | 7 | 2 |  |
| Growth factor receptor domain | FnI-like domain | 7 | 5 |  |
| Somatomedin B domain | Somatomedin B domain | 7 | 5 |  |
| MFS general substrate transporter | MFS general substrate transporter | 7 | 3 |  |
| TSP type-3 repeat | TSP type-3 repeat | 7 | 5 |  |
| lambda repressor-like DNA-binding domains | lambda repressor-like DNA-binding domains | 7 | 5 |  |
| Quinoprotein alcohol dehydrogenase-like | Quinoprotein alcohol dehydrogenase-like | 7 | 6 |  |
| Glutathione synthetase ATP-binding domain-like | Single hybrid motif | 7 | 5 |  |
| BPTI-like | BPTI-like | 7 | 7 |  |
| FAD-binding/transporter-associated domain-like | CO dehydrogenase flavoprotein C-terminal domain-like | 7 | 1 |  |
| GroES-like | GroES-like | 7 | 1 |  |
| Ankyrin repeat | POZ domain | 7 | 6 |  |
| Cap-Gly domain | Cap-Gly domain | 7 | 5 |  |
| EGF/Laminin | Fibrinogen C-terminal domain-like | 7 | 2 |  |
| CO dehydrogenase ISP C-domain like | Molybdenum cofactor-binding domain | 7 | 1 |  |
| Nucleic acid-binding proteins | Class II aaRS and biotin synthetases | 7 | 3 |  |
| FKBP-like | TPR-like | 7 | 3 |  |
| EGF/Laminin | TSP type-3 repeat | 7 | 5 |  |
| FnI-like domain | EGF/Laminin | 7 | 4 |  |
| Thioredoxin-like | Ubiquitin-like | 7 | 3 |  |
| Periplasmic binding protein-like I | Protein kinase-like (PK-like) | 7 | 5 |  |
| L domain-like | Calponin-homology domain, CH-domain | 7 | 2 |  |
| CO dehydrogenase flavoprotein C-terminal domain-like | CO dehydrogenase molybdoprotein N-domain-like | 7 | 1 |  |
| Acyl-CoA N-acyltransferases (Nat) | Acyl-CoA N-acyltransferases (Nat) | 6 | 2 |  |
| Periplasmic binding protein-like I | Nucleotide cyclase | 6 | 4 |  |
| P-loop containing nucleoside triphosphate hydrolases | Phosphoglycerate mutase-like | 6 | 1 |  |
| TPR-like | Ankyrin repeat | 6 | 5 |  |
| Zn-finger domain of Sec23/24 | C-terminal, gelsolin-like domain of Sec23/24 | 6 | 3 |  |
| Kazal-type serine protease inhibitors | Immunoglobulin | 6 | 4 |  |
| Fibronectin type III | Fibrinogen C-terminal domain-like | 6 | 5 |  |
| Ras GEF | PH domain-like | 6 | 5 |  |
| Concanavalin A-like lectins/glucanases | P-domain of calnexin/calreticulin | 6 | 2 |  |
| Composite domain of metallo-dependent hydrolases | Composite domain of metallo-dependent hydrolases | 6 | 2 |  |
| EGF/Laminin | Fibronectin type III | 6 | 6 |  |
| Calponin-homology domain, CH-domain | SH3-domain | 6 | 2 |  |
| PH domain-like | FAT domain of focal adhesion kinase | 6 | 3 |  |
| WW domain | GTPase activation domain, GAP | 6 | 6 |  |
| Multidrug resistance efflux transporter EmrE | Multidrug resistance efflux transporter EmrE | 6 | 1 |  |
| Dimerization-anchoring domain of cAMP-dependent PK regulatory subunit | cAMP-binding domain-like | 6 | 2 |  |
| Second domain of FERM | FAT domain of focal adhesion kinase | 6 | 3 |  |
| PUA domain-like | RING/U-box | 6 | 3 |  |
| "Winged helix" DNA-binding domain | FYVE/PHD zinc finger | 6 | 4 |  |
| Calponin-homology domain, CH-domain | DBL homology domain (DH-domain) | 6 | 2 |  |
| Enolase N-terminal domain-like | Enolase C-terminal domain-like | 6 | 2 |  |
| Immunoglobulin | EGF/Laminin | 6 | 4 |  |
| E set domains | Ankyrin repeat | 6 | 2 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | C-terminal domain of PLC-beta | 6 | 3 |  |
| Ubiquitin-like | (Phosphotyrosine protein) phosphatases II | 6 | 3 |  |
| FYVE/PHD zinc finger | C2 domain (Calcium/lipid-binding domain, CaLB) | 6 | 4 |  |
| CRAL/TRIO domain | DBL homology domain (DH-domain) | 6 | 5 |  |
| DBL homology domain (DH-domain) | WD40 repeat-like | 6 | 1 |  |
| Kazal-type serine protease inhibitors | EGF/Laminin | 6 | 4 |  |
| ARM repeat | Hect, E3 ligase catalytic domain | 6 | 3 |  |
| SAM/Pointed domain | Bet v1-like | 6 | 2 |  |
| SH3-domain | Fibronectin type III | 6 | 4 |  |
| (Phosphotyrosine protein) phosphatases II | SH2 domain | 6 | 3 |  |
| LDL receptor-like module | Concanavalin A-like lectins/glucanases | 6 | 6 |  |
| alpha-ketoacid dehydrogenase kinase, N-terminal domain | ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | 6 | 2 |  |
| PA domain | RING/U-box | 6 | 2 |  |
| WW domain | PH domain-like | 6 | 4 |  |
| Glycoside hydrolase/deacetylase | Families 57/38 glycoside transferase middle domain | 6 | 5 |  |
| Doublecortin (DC) | Doublecortin (DC) | 6 | 4 |  |
| Protein kinase-like (PK-like) | Polo-box domain | 6 | 4 |  |
| SAND domain-like | Bromodomain | 6 | 3 |  |
| Kazal-type serine protease inhibitors | Thyroglobulin type-1 domain | 6 | 4 |  |
| Second domain of FERM | Moesin tail domain | 6 | 2 |  |
| t-snare proteins | SNARE fusion complex | 6 | 2 |  |
| SAND domain-like | FYVE/PHD zinc finger | 6 | 3 |  |
| S15/NS1 RNA-binding domain | Class II aaRS and biotin synthetases | 6 | 4 |  |
| GTPase activation domain, GAP | Bet v1-like | 6 | 2 |  |
| Ribosomal protein S5 domain 2-like | Ribonuclease PH domain 2-like | 6 | 3 |  |
| Zn-finger domain of Sec23/24 | vWA-like | 6 | 3 |  |
| Carboxypeptidase regulatory domain-like | NHL repeat | 6 | 4 |  |
| Protein kinase-like (PK-like) | FAT domain of focal adhesion kinase | 6 | 3 |  |
| (Trans)glycosidases | Chitinase insertion domain | 6 | 3 |  |
| Ricin B-like lectins | Kringle-like | 6 | 3 |  |
| Concanavalin A-like lectins/glucanases | P-loop containing nucleoside triphosphate hydrolases | 6 | 5 |  |
| Frizzled cysteine-rich domain | TIMP-like | 6 | 2 |  |
| Spectrin repeat | DBL homology domain (DH-domain) | 6 | 5 |  |
| CAD & PB1 domains | Protein kinase-like (PK-like) | 6 | 4 |  |
| PA domain | Transferrin receptor-like dimerisation domain | 6 | 1 |  |
| Rap/Ran-GAP | PDZ domain-like | 6 | 1 |  |
| Calponin-homology domain, CH-domain | Glucocorticoid receptor-like (DNA-binding domain) | 6 | 6 |  |
| Concanavalin A-like lectins/glucanases | EF-hand | 6 | 5 |  |
| Ras GEF | EF-hand | 6 | 3 |  |
| Ubiquitin-like | FAT domain of focal adhesion kinase | 6 | 3 |  |
| Zn-finger domain of Sec23/24 | Helical domain of Sec23/24 | 6 | 3 |  |
| IP3 receptor type 1 binding core, domain 2 | EF-hand | 6 | 5 |  |
| Ran binding protein zinc finger-like | Ran binding protein zinc finger-like | 6 | 5 |  |
| Kringle-like | C-type lectin-like | 6 | 3 |  |
| PAH2 domain | PAH2 domain | 6 | 3 |  |
| PH domain-like | Moesin tail domain | 6 | 2 |  |
| Immunoglobulin | Complement control module/SCR domain | 6 | 5 |  |
| Galactose-binding domain-like | Fibrinogen C-terminal domain-like | 6 | 1 |  |
| EF-hand | DBL homology domain (DH-domain) | 6 | 3 |  |
| Protein kinase-like (PK-like) | Nucleotide cyclase | 6 | 4 |  |
| Retrovirus zinc finger-like domains | Retrovirus zinc finger-like domains | 6 | 5 |  |
| Concanavalin A-like lectins/glucanases | FnI-like domain | 6 | 3 |  |
| Ribosomal L11/L12e N-terminal domain | Ribosomal protein L11, C-terminal domain | 6 | 2 |  |
| Lipovitellin-phosvitin complex, superhelical domain | Lipovitellin-phosvitin complex; beta-sheet shell regions | 6 | 4 |  |
| Putative DNA-binding domain | SAND domain-like | 6 | 2 |  |
| UBA-like | UBA-like | 6 | 5 |  |
| SH2 domain | GTPase activation domain, GAP | 6 | 3 |  |
| Cystatin/monellin | Cystatin/monellin | 6 | 4 |  |
| Ribosomal protein S5 domain 2-like | HSP90 C-terminal domain | 6 | 3 |  |
| Cysteine proteinases | ARM repeat | 6 | 4 |  |
| RNA-binding domain, RBD | PABC (PABP) domain | 6 | 2 |  |
| B-box zinc-binding domain | FYVE/PHD zinc finger | 6 | 5 |  |
| Zn-finger domain of Sec23/24 | beta-sandwich domain of Sec23/24 | 6 | 3 |  |
| Second domain of FERM | (Phosphotyrosine protein) phosphatases II | 6 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | GTPase activation domain, GAP | 6 | 4 |  |
| IP3 receptor type 1 binding core, domain 2 | Concanavalin A-like lectins/glucanases | 6 | 5 |  |
| ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | HSP90 C-terminal domain | 6 | 3 |  |
| Ribosomal protein L6 | Ribosomal protein L6 | 6 | 1 |  |
| EF-hand | C-terminal domain of PLC-beta | 6 | 3 |  |
| FYVE/PHD zinc finger | HMG-box | 6 | 5 |  |
| cAMP-binding domain-like | Ras GEF | 6 | 4 |  |
| Ricin B-like lectins | C-type lectin-like | 6 | 3 |  |
| NAD(P)-binding Rossmann-fold domains | P-loop containing nucleoside triphosphate hydrolases | 6 | 2 |  |
| SAM/Pointed domain | PDZ domain-like | 6 | 5 |  |
| PA domain | Zn-dependent exopeptidases | 6 | 1 |  |
| FYVE/PHD zinc finger | Chromo domain-like | 6 | 2 |  |
| S15/NS1 RNA-binding domain | Class II aaRS ABD-related | 6 | 4 |  |
| P-loop containing nucleoside triphosphate hydrolases | RING/U-box | 6 | 5 |  |
| PLC-like phosphodiesterases | C-terminal domain of PLC-beta | 6 | 3 |  |
| TSP-1 type 1 repeat | DEATH domain | 6 | 2 |  |
| Growth factor receptor domain | Kazal-type serine protease inhibitors | 5 | 2 |  |
| A heparin-binding domain | CAPPD, an extracellular domain of amyloid beta A4 protein | 5 | 3 |  |
| Subtilisin-like | Growth factor receptor domain | 5 | 3 |  |
| Clavaminate synthase-like | RNI-like | 5 | 1 |  |
| TPR-like | HCP-like | 5 | 5 |  |
| Anaphylotoxins (complement system) | TIMP-like | 5 | 2 |  |
| Protein kinase-like (PK-like) | G protein-binding domain | 5 | 3 |  |
| Thiamin diphosphate-binding fold (THDP-binding) | TK C-terminal domain-like | 5 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | POZ domain | 5 | 2 |  |
| Terpenoid cyclases/Protein prenyltransferases | TIMP-like | 5 | 2 |  |
| Anaphylotoxins (complement system) | Alpha-macroglobulin receptor domain | 5 | 2 |  |
| F-box domain | Galactose-binding domain-like | 5 | 2 |  |
| TGS-like | ThrRS/AlaRS common domain | 5 | 4 |  |
| P-loop containing nucleoside triphosphate hydrolases | WW domain | 5 | 5 |  |
| RING/U-box | Ankyrin repeat | 5 | 4 |  |
| SH2 domain | VPS9 domain | 5 | 5 |  |
| Glutamine synthetase, N-terminal domain | Glutamine synthetase/guanido kinase | 5 | 2 |  |
| gamma-Crystallin-like | gamma-Crystallin-like | 5 | 2 |  |
| N-terminal domain of cbl (N-cbl) | RING/U-box | 5 | 3 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | FabD/lysophospholipase-like | 5 | 2 |  |
| Cysteine-rich domain | DBL homology domain (DH-domain) | 5 | 4 |  |
| Quinoprotein alcohol dehydrogenase-like | Protein kinase-like (PK-like) | 5 | 3 |  |
| TPR-like | RING/U-box | 5 | 4 |  |
| Voltage-gated potassium channels | NAD(P)-binding Rossmann-fold domains | 5 | 2 |  |
| CalX-like | CalX-like | 5 | 5 |  |
| "Winged helix" DNA-binding domain | Ras GEF | 5 | 3 |  |
| RCC1/BLIP-II | RCC1/BLIP-II | 5 | 4 |  |
| Glycoside hydrolase/deacetylase | Galactose mutarotase-like | 5 | 4 |  |
| P-loop containing nucleoside triphosphate hydrolases | TGS-like | 5 | 1 |  |
| MIR domain | IP3 receptor type 1 binding core, domain 2 | 5 | 4 |  |
| RNase III domain-like | dsRNA-binding domain-like | 5 | 3 |  |
| CRAL/TRIO N-terminal domain | Supernatant protein factor (SPF), C-terminal domain | 5 | 2 |  |
| Thioesterase/thiol ester dehydrase-isomerase | Thioesterase/thiol ester dehydrase-isomerase | 5 | 4 |  |
| ARM repeat | RING/U-box | 5 | 4 |  |
| RUN domain-like | Ypt/Rab-GAP domain of gyp1p | 5 | 2 |  |
| Class II aaRS and biotin synthetases | ThrRS/AlaRS common domain | 5 | 3 |  |
| Metalloproteases ("zincins"), catalytic domain | EGF/Laminin | 5 | 3 |  |
| WW domain | EF-hand | 5 | 3 |  |
| G protein-binding domain | Cysteine-rich domain | 5 | 3 |  |
| SH2 domain | RING/U-box | 5 | 3 |  |
| CRAL/TRIO domain | Supernatant protein factor (SPF), C-terminal domain | 5 | 2 |  |
| PsbU/PolX domain-like | Nucleotidyltransferase | 5 | 3 |  |
| Hermes dimerisation domain | Ribonuclease H-like | 5 | 4 |  |
| Saposin | Saposin | 5 | 3 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | VHP, Villin headpiece domain | 5 | 3 |  |
| FYVE/PHD zinc finger | RNI-like | 5 | 1 |  |
| Bromodomain | RING/U-box | 5 | 2 |  |
| WWE domain | Hect, E3 ligase catalytic domain | 5 | 2 |  |
| WWE domain | ADP-ribosylation | 5 | 3 |  |
| TPR-like | SH3-domain | 5 | 3 |  |
| Actin depolymerizing proteins | VHP, Villin headpiece domain | 5 | 3 |  |
| Outer arm dynein light chain 1 | L domain-like | 5 | 5 |  |
| LDL receptor-like module | TSP-1 type 1 repeat | 5 | 5 |  |
| Families 57/38 glycoside transferase middle domain | Galactose mutarotase-like | 5 | 4 |  |
| Concanavalin A-like lectins/glucanases | Family A G protein-coupled receptor-like | 5 | 3 |  |
| RNA-binding domain, RBD | Eukaryotic type KH-domain (KH-domain type I) | 5 | 3 |  |
| CCHHC domain | CCHHC domain | 5 | 4 |  |
| Glutathione synthetase ATP-binding domain-like | Phosphoglycerate mutase-like | 5 | 1 |  |
| Calponin-homology domain, CH-domain | PRC-barrel domain | 5 | 1 |  |
| G protein-binding domain | PH domain-like | 5 | 3 |  |
| N-terminal domain of cbl (N-cbl) | SH2 domain | 5 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | Bromodomain | 5 | 2 |  |
| Ubiquitin-like | SH2 domain | 5 | 4 |  |
| RUN domain-like | FYVE/PHD zinc finger | 5 | 3 |  |
| DNA polymerase beta, N-terminal domain-like | PsbU/PolX domain-like | 5 | 3 |  |
| DNA repair protein MutS, domain III | P-loop containing nucleoside triphosphate hydrolases | 5 | 3 |  |
| PDZ domain-like | (Phosphotyrosine protein) phosphatases II | 5 | 3 |  |
| beta-beta-alpha zinc fingers | Ribonuclease H-like | 5 | 4 |  |
| Cysteine-rich domain | SH3-domain | 5 | 2 |  |
| DNA ligase/mRNA capping enzyme, catalytic domain | Nucleic acid-binding proteins | 5 | 4 |  |
| UBA-like | Cysteine proteinases | 5 | 3 |  |
| ARM repeat | WWE domain | 5 | 2 |  |
| Protease propeptides/inhibitors | Galactose-binding domain-like | 5 | 4 |  |
| HCP-like | HCP-like | 5 | 5 |  |
| Ras GEF | Cysteine-rich domain | 5 | 2 |  |
| Domain of poly(ADP-ribose) polymerase | ADP-ribosylation | 5 | 5 |  |
| DNA polymerase beta, N-terminal domain-like | Nucleotidyltransferase | 5 | 3 |  |
| Eukaryotic type KH-domain (KH-domain type I) | RING/U-box | 5 | 2 |  |
| Ribonuclease H-like | RNA-binding domain, RBD | 5 | 5 |  |
| PDZ domain-like | Regulator of G-protein signaling, RGS | 5 | 3 |  |
| SAP domain | RNA-binding domain, RBD | 5 | 2 |  |
| RNI-like | ARM repeat | 5 | 1 |  |
| vWA-like | Chicken cartilage matrix protein | 5 | 4 |  |
| Ubiquitin-like | Moesin tail domain | 5 | 1 |  |
| SMAD/FHA domain | PH domain-like | 5 | 3 |  |
| Alpha-macroglobulin receptor domain | TIMP-like | 5 | 2 |  |
| PHM/PNGase F | PHM/PNGase F | 5 | 3 |  |
| CRAL/TRIO domain | PH domain-like | 5 | 4 |  |
| "Winged helix" DNA-binding domain | S-adenosyl-L-methionine-dependent methyltransferases | 5 | 2 |  |
| beta-beta-alpha zinc fingers | Hermes dimerisation domain | 5 | 4 |  |
| Elafin-like | BPTI-like | 5 | 5 |  |
| Anaphylotoxins (complement system) | Terpenoid cyclases/Protein prenyltransferases | 5 | 2 |  |
| Calponin-homology domain, CH-domain | E set domains | 5 | 2 |  |
| dsRNA-binding domain-like | Ribosomal protein S5 domain 2-like | 5 | 2 |  |
| N-terminal domain of cbl (N-cbl) | EF-hand | 5 | 3 |  |
| Spermadhesin, CUB domain | Concanavalin A-like lectins/glucanases | 5 | 4 |  |
| Concanavalin A-like lectins/glucanases | Metalloproteases ("zincins"), catalytic domain | 5 | 5 |  |
| PKD domain | PKD domain | 5 | 4 |  |
| HR1 repeat | HR1 repeat | 5 | 2 |  |
| Concanavalin A-like lectins/glucanases | WD40 repeat-like | 5 | 4 |  |
| Nucleotidylyl transferase | S15/NS1 RNA-binding domain | 5 | 3 |  |
| gamma-Crystallin-like | Ricin B-like lectins | 5 | 2 |  |
| DBL homology domain (DH-domain) | BAR/IMD domain-like | 5 | 3 |  |
| HR1 repeat | C2 domain (Calcium/lipid-binding domain, CaLB) | 5 | 2 |  |
| Glycerol-3-phosphate (1)-acyltransferase | EF-hand | 5 | 1 |  |
| Pectin lyase-like | Pectin lyase-like | 5 | 4 |  |
| cAMP-binding domain-like | Ubiquitin-like | 5 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | Sec63 N-terminal domain-like | 5 | 5 |  |
| HR1 repeat | Protein kinase-like (PK-like) | 5 | 2 |  |
| TAFH domain-like | Histone-fold | 5 | 1 |  |
| Creatinase/prolidase N-terminal domain | Creatinase/aminopeptidase | 5 | 5 |  |
| SH2 domain | Ras GEF | 5 | 3 |  |
| Regulator of G-protein signaling, RGS | PX domain | 5 | 2 |  |
| EGF/Laminin | TIMP-like | 5 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | FtsH protease domain-like | 5 | 2 |  |
| FAS1 domain | FAS1 domain | 5 | 4 |  |
| Thyroglobulin type-1 domain | Thyroglobulin type-1 domain | 5 | 4 |  |
| Second domain of FERM | SH2 domain | 5 | 3 |  |
| BRCT domain | Homeodomain-like | 4 | 1 |  |
| ArfGap/RecO-like zinc finger | GTPase activation domain, GAP | 4 | 3 |  |
| Calponin-homology domain, CH-domain | GTPase activation domain, GAP | 4 | 3 |  |
| ENTH/VHS domain | SH3-domain | 4 | 1 |  |
| EF-hand | NAD kinase/diacylglycerol kinase-like | 4 | 1 |  |
| PH domain-like | C-terminal domain of PLC-beta | 4 | 2 |  |
| Translation proteins SH3-like domain | Nucleic acid-binding proteins | 4 | 2 |  |
| UBA-like | ARM repeat | 4 | 3 |  |
| IP3 receptor type 1 binding core, domain 2 | IP3 receptor type 1 binding core, domain 2 | 4 | 4 |  |
| PH domain-like | I/LWEQ domain | 4 | 2 |  |
| PH domain-like | Wiscott-Aldrich syndrome protein, WASP, C-terminal domain | 4 | 3 |  |
| Second domain of FERM | alpha-catenin/vinculin-like | 4 | 2 |  |
| ENTH/VHS domain | Clathrin adaptor appendage domain | 4 | 1 |  |
| ARM repeat | BEACH domain | 4 | 3 |  |
| Spectrin repeat | RING/U-box | 4 | 2 |  |
| B-box zinc-binding domain | Bromodomain | 4 | 3 |  |
| BPTI-like | CAPPD, an extracellular domain of amyloid beta A4 protein | 4 | 2 |  |
| Galactose-binding domain-like | Carboxypeptidase regulatory domain-like | 4 | 3 |  |
| BRCT domain | DNA polymerase beta, N-terminal domain-like | 4 | 2 |  |
| Nucleotidylyl transferase | P-loop containing nucleoside triphosphate hydrolases | 4 | 2 |  |
| EF-hand | Dimeric alpha+beta barrel | 4 | 1 |  |
| Activating enzymes of the ubiquitin-like proteins | Activating enzymes of the ubiquitin-like proteins | 4 | 1 |  |
| L domain-like | EGF/Laminin | 4 | 4 |  |
| Amyloid beta a4 protein copper binding domain (domain 2) | BPTI-like | 4 | 2 |  |
| Dimeric alpha+beta barrel | Dimeric alpha+beta barrel | 4 | 1 |  |
| Polo-box domain | Polo-box domain | 4 | 3 |  |
| (Phosphotyrosine protein) phosphatases II | Chaperone J-domain | 4 | 2 |  |
| Carbonic anhydrase | Fibronectin type III | 4 | 2 |  |
| Aminoacid dehydrogenase-like, N-terminal domain | P-loop containing nucleoside triphosphate hydrolases | 4 | 1 |  |
| SAM/Pointed domain | ADP-ribosylation | 4 | 3 |  |
| Taf5 N-terminal domain-like | WD40 repeat-like | 4 | 1 |  |
| Phenylalanine zipper | SH2 domain | 4 | 2 |  |
| Somatomedin B domain | His-Me finger endonucleases | 4 | 3 |  |
| FAD/NAD(P)-binding domain | Glucocorticoid receptor-like (DNA-binding domain) | 4 | 4 |  |
| Acyl-CoA dehydrogenase C-terminal domain-like | Acyl-CoA dehydrogenase C-terminal domain-like | 4 | 2 |  |
| Nucleotidylyl transferase | Ribosomal protein L25-like | 4 | 2 |  |
| I/LWEQ domain | alpha-catenin/vinculin-like | 4 | 2 |  |
| ADC-like | P-loop containing nucleoside triphosphate hydrolases | 4 | 2 |  |
| Single hybrid motif | CoA-dependent acyltransferases | 4 | 3 |  |
| DnaJ/Hsp40 cysteine-rich domain | HSP40/DnaJ peptide-binding domain | 4 | 2 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | PX domain | 4 | 3 |  |
| Amyloid beta a4 protein copper binding domain (domain 2) | CAPPD, an extracellular domain of amyloid beta A4 protein | 4 | 2 |  |
| Single hybrid motif | ClpP/crotonase | 4 | 3 |  |
| Spectrin repeat | WW domain | 4 | 2 |  |
| Ligand-binding domain in the NO signalling and Golgi transport | Nucleotide cyclase | 4 | 2 |  |
| Guanido kinase N-terminal domain | Glutamine synthetase/guanido kinase | 4 | 3 |  |
| PH domain-like | alpha-catenin/vinculin-like | 4 | 2 |  |
| Mannose 6-phosphate receptor domain | Mannose 6-phosphate receptor domain | 4 | 2 |  |
| Trypsin-like serine proteases | Trypsin-like serine proteases | 4 | 4 |  |
| PH domain-like | Immunoglobulin | 4 | 4 |  |
| ARM repeat | PX domain | 4 | 3 |  |
| ARM repeat | Galactose-binding domain-like | 4 | 3 |  |
| GFP-like | EGF/Laminin | 4 | 4 |  |
| PreATP-grasp domain | ClpP/crotonase | 4 | 3 |  |
| ArfGap/RecO-like zinc finger | SH3-domain | 4 | 1 |  |
| ACT-like | Aromatic aminoacid monoxygenases, catalytic and oligomerization domains | 4 | 2 |  |
| Spermadhesin, CUB domain | C-type lectin-like | 4 | 4 |  |
| CRAL/TRIO domain | SH3-domain | 4 | 3 |  |
| Heat shock protein 70kD (HSP70), C-terminal subdomain | Heat shock protein 70kD (HSP70), C-terminal subdomain | 4 | 1 |  |
| Translation proteins | ThrRS/AlaRS common domain | 4 | 3 |  |
| RING/U-box | WWE domain | 4 | 3 |  |
| DBL homology domain (DH-domain) | SH2 domain | 4 | 2 |  |
| Zinc beta-ribbon | Cyclin-like | 4 | 2 |  |
| Ribosomal L27 protein-like | Nucleic acid-binding proteins | 4 | 2 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | Eferin C-derminal domain-like | 4 | 2 |  |
| Conserved domain common to transcription factors TFIIS, elongin A, CRSP70 | Zinc beta-ribbon | 4 | 2 |  |
| Phenylalanine zipper | PH domain-like | 4 | 2 |  |
| ADC-like | Cdc48 domain 2-like | 4 | 2 |  |
| Ubiquitin-like | alpha-catenin/vinculin-like | 4 | 2 |  |
| Spermadhesin, CUB domain | SRCR-like | 4 | 4 |  |
| TPR-like | "Winged helix" DNA-binding domain | 4 | 1 |  |
| Calponin-homology domain, CH-domain | EB1 dimerisation domain-like | 4 | 1 |  |
| EGF/Laminin | Notch domain | 4 | 3 |  |
| Inhibitor of apoptosis (IAP) repeat | Inhibitor of apoptosis (IAP) repeat | 4 | 3 |  |
| Translation initiation factor 2 beta, aIF2beta, N-terminal domain | Zinc-binding domain of translation initiation factor 2 beta | 4 | 2 |  |
| Transducin (heterotrimeric G protein), gamma chain | Regulator of G-protein signaling, RGS | 4 | 2 |  |
| SH2 domain | Cysteine-rich domain | 4 | 2 |  |
| FKBP-like | EF-hand | 4 | 2 |  |
| Growth factor receptor domain | Chicken cartilage matrix protein | 4 | 3 |  |
| GST C-terminal domain-like | S15/NS1 RNA-binding domain | 4 | 2 |  |
| FYVE/PHD zinc finger | Acyl-CoA N-acyltransferases (Nat) | 4 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | FF domain | 4 | 2 |  |
| Tropomyosin | Tropomyosin | 4 | 4 |  |
| A middle domain of Talin 1 | I/LWEQ domain | 4 | 2 |  |
| DBL homology domain (DH-domain) | Protein kinase-like (PK-like) | 4 | 4 |  |
| Cysteine-rich domain | SAM/Pointed domain | 4 | 2 |  |
| EF-hand | GAS2 domain-like | 4 | 4 |  |
| EGF/Laminin | Ankyrin repeat | 4 | 3 |  |
| Concanavalin A-like lectins/glucanases | PH domain-like | 4 | 3 |  |
| NSFL1 (p97 ATPase) cofactor p47, SEP domain | Ubiquitin-like | 4 | 3 |  |
| L27 domain | L27 domain | 4 | 2 |  |
| Wiscott-Aldrich syndrome protein, WASP, C-terminal domain | Wiscott-Aldrich syndrome protein, WASP, C-terminal domain | 4 | 3 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | Chaperone J-domain | 4 | 2 |  |
| TAFH domain-like | HIT/MYND zinc finger-like | 4 | 1 |  |
| PH domain-like | NAD kinase/diacylglycerol kinase-like | 4 | 2 |  |
| Notch domain | Ankyrin repeat | 4 | 3 |  |
| A middle domain of Talin 1 | alpha-catenin/vinculin-like | 4 | 2 |  |
| Ankyrin repeat | Mib/herc2 domain-like | 4 | 3 |  |
| CCCH zinc finger | P-loop containing nucleoside triphosphate hydrolases | 4 | 2 |  |
| Nucleotidyltransferase | PAP/Archaeal CCA-adding enzyme, C-terminal domain | 4 | 2 |  |
| Rudiment single hybrid motif | ClpP/crotonase | 4 | 3 |  |
| S-adenosyl-L-methionine-dependent methyltransferases | S-adenosyl-L-methionine-dependent methyltransferases | 4 | 3 |  |
| PH domain-like | Tricorn protease domain 2 | 4 | 3 |  |
| A heparin-binding domain | Amyloid beta a4 protein copper binding domain (domain 2) | 4 | 2 |  |
| ATP-dependent DNA ligase DNA-binding domain | Nucleic acid-binding proteins | 4 | 3 |  |
| TATA-box binding protein-like | TATA-box binding protein-like | 4 | 2 |  |
| L domain-like | Concanavalin A-like lectins/glucanases | 4 | 4 |  |
| vWA-like | Growth factor receptor domain | 4 | 3 |  |
| Actin-crosslinking proteins | Actin-crosslinking proteins | 4 | 2 |  |
| B-box zinc-binding domain | NHL repeat | 4 | 3 |  |
| Second domain of FERM | A middle domain of Talin 1 | 4 | 2 |  |
| Cdc48 domain 2-like | P-loop containing nucleoside triphosphate hydrolases | 4 | 2 |  |
| "Winged helix" DNA-binding domain | Sec63 N-terminal domain-like | 4 | 4 |  |
| Chaperone J-domain | DnaJ/Hsp40 cysteine-rich domain | 4 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | dsRNA-binding domain-like | 4 | 2 |  |
| Ankyrin repeat | ADP-ribosylation | 4 | 3 |  |
| Tudor/PWWP/MBT | S-adenosyl-L-methionine-dependent methyltransferases | 4 | 1 |  |
| Concanavalin A-like lectins/glucanases | BEACH domain | 4 | 3 |  |
| RNA-binding domain, RBD | Retrovirus zinc finger-like domains | 4 | 2 |  |
| Elafin-like | Elafin-like | 4 | 3 |  |
| RNase III domain-like | RNase III domain-like | 4 | 2 |  |
| Peptidase/esterase 'gauge' domain | alpha/beta-Hydrolases | 4 | 2 |  |
| Spermadhesin, CUB domain | Galactose-binding domain-like | 4 | 3 |  |
| Calponin-homology domain, CH-domain | RGC domain-like | 4 | 3 |  |
| NAD kinase/diacylglycerol kinase-like | SAM/Pointed domain | 4 | 2 |  |
| Regulator of G-protein signaling, RGS | DBL homology domain (DH-domain) | 4 | 2 |  |
| DBL homology domain (DH-domain) | Immunoglobulin | 4 | 4 |  |
| Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex | CoA-dependent acyltransferases | 4 | 3 |  |
| "Winged helix" DNA-binding domain | GTPase activation domain, GAP | 4 | 1 |  |
| GST C-terminal domain-like | Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | 4 | 3 |  |
| Transcription factor IIA (TFIIA), alpha-helical domain | Transcription factor IIA (TFIIA), beta-barrel domain | 4 | 2 |  |
| SEA domain | SEA domain | 4 | 3 |  |
| Alkaline phosphatase-like | His-Me finger endonucleases | 4 | 3 |  |
| GAT-like domain | Clathrin adaptor appendage domain | 4 | 1 |  |
| Galactose-binding domain-like | RING/U-box | 4 | 2 |  |
| SH3-domain | Phosphoglycerate mutase-like | 4 | 2 |  |
| FAD/NAD(P)-binding domain | Calponin-homology domain, CH-domain | 4 | 4 |  |
| B-box zinc-binding domain | E set domains | 4 | 3 |  |
| ATP-dependent DNA ligase DNA-binding domain | DNA ligase/mRNA capping enzyme, catalytic domain | 4 | 3 |  |
| SNARE fusion complex | SNARE fusion complex | 4 | 2 |  |
| TRAF domain-like | F-box domain | 4 | 1 |  |
| RNA-binding domain, RBD | SPOC domain-like | 4 | 3 |  |
| Somatomedin B domain | Alkaline phosphatase-like | 4 | 3 |  |
| Galactose-binding domain-like | Zn-dependent exopeptidases | 4 | 3 |  |
| Calponin-homology domain, CH-domain | Plakin repeat | 4 | 4 |  |
| Ubiquitin-like | I/LWEQ domain | 4 | 2 |  |
| Periplasmic binding protein-like II | Periplasmic binding protein-like II | 4 | 2 |  |
| ClpS-like | "Winged helix" DNA-binding domain | 4 | 1 |  |
| GFP-like | Growth factor receptor domain | 4 | 4 |  |
| Glutathione synthetase ATP-binding domain-like | ClpP/crotonase | 4 | 3 |  |
| DNA/RNA polymerases | Lesion bypass DNA polymerase (Y-family), little finger domain | 4 | 2 |  |
| GTF2I-like repeat | GTF2I-like repeat | 4 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | TPR-like | 4 | 2 |  |
| A heparin-binding domain | BPTI-like | 4 | 2 |  |
| Second domain of FERM | I/LWEQ domain | 4 | 2 |  |
| PX domain | Ubiquitin-like | 4 | 3 |  |
| Glutathione synthetase ATP-binding domain-like | Succinyl-CoA synthetase domains | 4 | 2 |  |
| Ubiquitin-like | DBL homology domain (DH-domain) | 4 | 3 |  |
| ARID-like | Chromo domain-like | 4 | 3 |  |
| Notch domain | Notch domain | 4 | 3 |  |
| L domain-like | RNI-like | 4 | 3 |  |
| GTPase activation domain, GAP | RGC domain-like | 4 | 3 |  |
| WW domain | RING/U-box | 4 | 2 |  |
| PAP/OAS1 substrate-binding domain | PAP/Archaeal CCA-adding enzyme, C-terminal domain | 4 | 2 |  |
| Cysteine-rich DNA binding domain, (DM domain) | UBA-like | 4 | 2 |  |
| "Winged helix" DNA-binding domain | cAMP-binding domain-like | 4 | 2 |  |
| Formyltransferase | FMT C-terminal domain-like | 4 | 3 |  |
| Surp module (SWAP domain) | ENTH/VHS domain | 4 | 2 |  |
| Kelch motif | Galactose oxidase, central domain | 4 | 3 |  |
| Cryptochrome/photolyase, N-terminal domain | Cryptochrome/photolyase FAD-binding domain | 4 | 1 |  |
| Aconitase iron-sulfur domain | LeuD/IlvD-like | 4 | 2 |  |
| BAR/IMD domain-like | Cysteine-rich domain | 4 | 2 |  |
| SMAD/FHA domain | BRCT domain | 4 | 2 |  |
| MIR domain | MIR domain | 4 | 4 |  |
| DBL homology domain (DH-domain) | Ras GEF | 4 | 4 |  |
| BRCT domain | PsbU/PolX domain-like | 4 | 2 |  |
| Elongation factor TFIIS domain 2 | Zinc beta-ribbon | 4 | 2 |  |
| RING/U-box | E set domains | 4 | 2 |  |
| Calponin-homology domain, CH-domain | WW domain | 4 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | Second domain of FERM | 4 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | Ubiquitin-like | 4 | 4 |  |
| WW domain | PDZ domain-like | 4 | 4 |  |
| Growth factor receptor domain | Ankyrin repeat | 4 | 3 |  |
| BRCT domain | Nucleotidyltransferase | 4 | 2 |  |
| Cysteine-rich domain | Tricorn protease domain 2 | 4 | 3 |  |
| Tricorn protease domain 2 | WD40 repeat-like | 4 | 4 |  |
| Metalloproteases ("zincins"), catalytic domain | Spermadhesin, CUB domain | 4 | 2 |  |
| Growth factor receptor domain | Notch domain | 4 | 3 |  |
| PurM N-terminal domain-like | PurM C-terminal domain-like | 4 | 3 |  |
| FKBP-like | FKBP-like | 4 | 2 |  |
| Nucleotidyltransferase | Retrovirus zinc finger-like domains | 4 | 3 |  |
| Carbonic anhydrase | (Phosphotyrosine protein) phosphatases II | 4 | 2 |  |
| PH domain-like | A middle domain of Talin 1 | 4 | 2 |  |
| PAP/OAS1 substrate-binding domain | Retrovirus zinc finger-like domains | 4 | 3 |  |
| I/LWEQ domain | I/LWEQ domain | 4 | 2 |  |
| Alkaline phosphatase-like | Alkaline phosphatase-like | 4 | 2 |  |
| Ubiquitin-like | A middle domain of Talin 1 | 4 | 2 |  |
| EF-hand | Riboflavin synthase domain-like | 3 | 1 |  |
| p53-like transcription factors | DNA-binding protein LAG-1 (CSL) | 3 | 1 |  |
| Mib/herc2 domain-like | RING/U-box | 3 | 2 |  |
| HIN-2000 domain-like | HIN-2000 domain-like | 3 | 3 |  |
| Galactose-binding domain-like | Hect, E3 ligase catalytic domain | 3 | 3 |  |
| TGS-like | Class II aaRS and biotin synthetases | 3 | 2 |  |
| HMG-box | SET domain | 3 | 3 |  |
| Midkine | Midkine | 3 | 2 |  |
| Ubiquitin-like | SH3-domain | 3 | 3 |  |
| Zn-dependent exopeptidases | Bacterial exopeptidase dimerisation domain | 3 | 1 |  |
| RUN domain-like | SH3-domain | 3 | 2 |  |
| Glycosyl hydrolase domain | Trefoil | 3 | 3 |  |
| Homeodomain-like | FAD/NAD(P)-binding domain | 3 | 2 |  |
| FYVE/PHD zinc finger | Elongation factor TFIIS domain 2 | 3 | 2 |  |
| Heme-dependent peroxidases | Riboflavin synthase domain-like | 3 | 1 |  |
| Plexin repeat | TSP-1 type 1 repeat | 3 | 3 |  |
| Growth factor receptor domain | Mannose 6-phosphate receptor domain | 3 | 1 |  |
| Galactose mutarotase-like | Trefoil | 3 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | Class I glutamine amidotransferase-like | 3 | 2 |  |
| NHL repeat | YVTN repeat-like/Quinoprotein amine dehydrogenase | 3 | 2 |  |
| Triple coiled coil domain of C-type lectins | C-type lectin-like | 3 | 1 |  |
| WGR domain-like | ADP-ribosylation | 3 | 3 |  |
| Ubiquitin-like | PUA domain-like | 3 | 1 |  |
| Class II aaRS ABD-related | C-terminal domain of ProRS | 3 | 1 |  |
| Macro domain-like | ADP-ribosylation | 3 | 2 |  |
| Nucleic acid-binding proteins | Eukaryotic type KH-domain (KH-domain type I) | 3 | 1 |  |
| TAZ domain | RING/U-box | 3 | 1 |  |
| Carboxypeptidase regulatory domain-like | YVTN repeat-like/Quinoprotein amine dehydrogenase | 3 | 2 |  |
| Dimerization cofactor of HNF-1 alpha | Homeodomain-like | 3 | 2 |  |
| PX domain | PH domain-like | 3 | 2 |  |
| Molybdenum cofactor biosynthesis proteins | MoeA N-terminal region -like | 3 | 1 |  |
| Prefoldin | WD40 repeat-like | 3 | 2 |  |
| PUA domain-like | Ribosomal protein S5 domain 2-like | 3 | 1 |  |
| Cation efflux protein transmembrane domain-like | Cation efflux protein cytoplasmic domain-like | 3 | 2 |  |
| Myosin S1 fragment, N-terminal domain | P-loop containing nucleoside triphosphate hydrolases | 3 | 2 |  |
| Tudor/PWWP/MBT | P-loop containing nucleoside triphosphate hydrolases | 3 | 3 |  |
| GST C-terminal domain-like | Class II aaRS ABD-related | 3 | 1 |  |
| Kix domain of CBP (creb binding protein) | Nuclear receptor coactivator interlocking domain | 3 | 1 |  |
| HMA, heavy metal-associated domain | Calcium ATPase, transmembrane domain M | 3 | 3 |  |
| N-terminal domain of alpha and beta subunits of F1 ATP synthase | P-loop containing nucleoside triphosphate hydrolases | 3 | 2 |  |
| Molybdenum cofactor biosynthesis proteins | MoeA C-terminal domain-like | 3 | 1 |  |
| RING/U-box | Nuclear receptor coactivator interlocking domain | 3 | 1 |  |
| RCC1/BLIP-II | POZ domain | 3 | 2 |  |
| Ribosomal protein S5 domain 2-like | DNA mismatch repair protein MutL | 3 | 2 |  |
| TAZ domain | TAZ domain | 3 | 1 |  |
| E set domains | NHL repeat | 3 | 2 |  |
| PX domain | Phospholipase D/nuclease | 3 | 2 |  |
| HMA, heavy metal-associated domain | HMA, heavy metal-associated domain | 3 | 3 |  |
| Cadherin-like | Growth factor receptor domain | 3 | 3 |  |
| SET domain | TPR-like | 3 | 2 |  |
| C-terminal, gelsolin-like domain of Sec23/24 | VHP, Villin headpiece domain | 3 | 2 |  |
| Arginyl-tRNA synthetase (ArgRS), N-terminal 'additional' domain | Nucleotidylyl transferase | 3 | 2 |  |
| "Winged helix" DNA-binding domain | Acyl-CoA N-acyltransferases (Nat) | 3 | 2 |  |
| Restriction endonuclease-like | RuvA domain 2-like | 3 | 3 |  |
| S15/NS1 RNA-binding domain | C-terminal domain of ProRS | 3 | 1 |  |
| TSP-1 type 1 repeat | TSP type-3 repeat | 3 | 1 |  |
| CBS-domain pair | CBS-domain pair | 3 | 2 |  |
| MIR domain | Concanavalin A-like lectins/glucanases | 3 | 2 |  |
| Dimerization cofactor of HNF-1 alpha | lambda repressor-like DNA-binding domains | 3 | 2 |  |
| Eukaryotic type KH-domain (KH-domain type I) | P-loop containing nucleoside triphosphate hydrolases | 3 | 2 |  |
| RCC1/BLIP-II | Galactose-binding domain-like | 3 | 2 |  |
| DBL homology domain (DH-domain) | "Winged helix" DNA-binding domain | 3 | 1 |  |
| Sema domain | TSP-1 type 1 repeat | 3 | 3 |  |
| Class II aaRS and biotin synthetases | C-terminal domain of ProRS | 3 | 1 |  |
| GST C-terminal domain-like | Ribosomal protein L25-like | 3 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | RuvA domain 2-like | 3 | 2 |  |
| Bet v1-like | HAD-like | 3 | 2 |  |
| N-terminal domain of adenylylcyclase associated protein, CAP | C-terminal domain of adenylylcyclase associated protein | 3 | 1 |  |
| TRAF domain-like | Trimerization domain of TRAF | 3 | 2 |  |
| Acetyl-CoA synthetase-like | Acetyl-CoA synthetase-like | 3 | 2 |  |
| S15/NS1 RNA-binding domain | S15/NS1 RNA-binding domain | 3 | 1 |  |
| LDL receptor-like module | Frizzled cysteine-rich domain | 3 | 2 |  |
| Growth factor receptor domain | Immunoglobulin | 3 | 1 |  |
| PH domain-like | Phospholipase D/nuclease | 3 | 2 |  |
| ThrRS/AlaRS common domain | Class II aaRS ABD-related | 3 | 2 |  |
| Concanavalin A-like lectins/glucanases | (Phosphotyrosine protein) phosphatases II | 3 | 1 |  |
| ATP-dependent DNA ligase DNA-binding domain | BRCT domain | 3 | 2 |  |
| NAD kinase/diacylglycerol kinase-like | Ankyrin repeat | 3 | 1 |  |
| FYVE/PHD zinc finger | PUA domain-like | 3 | 1 |  |
| MIR domain | EF-hand | 3 | 2 |  |
| PK beta-barrel domain-like | Phosphoenolpyruvate/pyruvate domain | 3 | 1 |  |
| Initiation factor IF2/eIF5b, domain 3 | Translation proteins | 3 | 2 |  |
| N-acetylmuramoyl-L-alanine amidase-like | N-acetylmuramoyl-L-alanine amidase-like | 3 | 2 |  |
| tRNA-binding arm | Class II aaRS and biotin synthetases | 3 | 2 |  |
| CAD & PB1 domains | PDZ domain-like | 3 | 1 |  |
| Ribosomal protein S5 domain 2-like | Type II DNA topoisomerase | 3 | 2 |  |
| HLH, helix-loop-helix DNA-binding domain | Nuclear receptor coactivator interlocking domain | 3 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | ArfGap/RecO-like zinc finger | 3 | 2 |  |
| Ran binding protein zinc finger-like | RING/U-box | 3 | 3 |  |
| Sec63 N-terminal domain-like | E set domains | 3 | 3 |  |
| Intermediate filament protein, coiled coil region | Lamin A/C globular tail domain | 3 | 3 |  |
| Myosin S1 fragment, N-terminal domain | Myosin rod fragments | 3 | 2 |  |
| Nucleotide cyclase | P-loop containing nucleoside triphosphate hydrolases | 3 | 1 |  |
| Calponin-homology domain, CH-domain | P-loop containing nucleoside triphosphate hydrolases | 3 | 2 |  |
| UBC-like | Endosomal sorting complex assembly domain | 3 | 1 |  |
| p53 tetramerization domain | SAM/Pointed domain | 3 | 1 |  |
| PIN domain-like | 5' to 3' exonuclease, C-terminal subdomain | 3 | 3 |  |
| E set domains | Anthrax protective antigen | 3 | 3 |  |
| FYVE/PHD zinc finger | HIT/MYND zinc finger-like | 3 | 2 |  |
| TGS-like | Class II aaRS ABD-related | 3 | 2 |  |
| SAND domain-like | HIT/MYND zinc finger-like | 3 | 1 |  |
| Sialidases | Sialidases | 3 | 2 |  |
| E set domains | DEATH domain | 3 | 1 |  |
| Protein kinase-like (PK-like) | Acyl-CoA dehydrogenase C-terminal domain-like | 3 | 3 |  |
| RING/U-box | NHL repeat | 3 | 2 |  |
| Ankyrin repeat | Cap-Gly domain | 3 | 3 |  |
| Ubiquitin-like | Ran binding protein zinc finger-like | 3 | 2 |  |
| DBL homology domain (DH-domain) | FYVE/PHD zinc finger | 3 | 2 |  |
| Ribosomal protein L25-like | Class II aaRS and biotin synthetases | 3 | 1 |  |
| Concanavalin A-like lectins/glucanases | Complement control module/SCR domain | 3 | 3 |  |
| Phosphoenolpyruvate/pyruvate domain | PK C-terminal domain-like | 3 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | BRCT domain | 3 | 2 |  |
| (Trans)glycosidases | Trefoil | 3 | 3 |  |
| BRCT domain | post-AAA+ oligomerization domain-like | 3 | 2 |  |
| "Winged helix" DNA-binding domain | occludin/ELL-like | 3 | 1 |  |
| Ubiquitin-like | FYVE/PHD zinc finger | 3 | 1 |  |
| SH2 domain | PLC-like phosphodiesterases | 3 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | Initiation factor IF2/eIF5b, domain 3 | 3 | 2 |  |
| FAD/NAD(P)-binding domain | Folate-binding domain | 3 | 2 |  |
| Fibronectin type III | YWTD domain | 3 | 3 |  |
| EF-hand | Ferredoxin reductase-like, C-terminal NADP-linked domain | 3 | 1 |  |
| Cytidine deaminase-like | Cytidine deaminase-like | 3 | 1 |  |
| Lipovitellin-phosvitin complex; beta-sheet shell regions | Lipovitellin-phosvitin complex; beta-sheet shell regions | 3 | 2 |  |
| Second domain of FERM | DBL homology domain (DH-domain) | 3 | 3 |  |
| Kix domain of CBP (creb binding protein) | RING/U-box | 3 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | Ribonuclease H-like | 3 | 2 |  |
| CAD & PB1 domains | UBA-like | 3 | 2 |  |
| beta-beta-alpha zinc fingers | FYVE/PHD zinc finger | 3 | 1 |  |
| BRK domain-like | BRK domain-like | 3 | 1 |  |
| L domain-like | C-terminal, gelsolin-like domain of Sec23/24 | 3 | 1 |  |
| Nucleotidylyl transferase | Class II aaRS and biotin synthetases | 3 | 1 |  |
| BRCA2 helical domain | BRCA2 tower domain | 3 | 1 |  |
| WD40 repeat-like | YVTN repeat-like/Quinoprotein amine dehydrogenase | 3 | 3 |  |
| ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | DNA mismatch repair protein MutL | 3 | 2 |  |
| F-box domain | Pectin lyase-like | 3 | 2 |  |
| Thioredoxin-like | Nucleoside diphosphate kinase, NDK | 3 | 2 |  |
| Arginase/deacetylase | Arginase/deacetylase | 3 | 2 |  |
| Surp module (SWAP domain) | Ubiquitin-like | 3 | 1 |  |
| Phosphofructokinase | Phosphofructokinase | 3 | 1 |  |
| G protein-binding domain | G protein-binding domain | 3 | 1 |  |
| Kix domain of CBP (creb binding protein) | Bromodomain | 3 | 1 |  |
| ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | Type II DNA topoisomerase | 3 | 2 |  |
| Spermadhesin, CUB domain | TIMP-like | 3 | 3 |  |
| Tudor/PWWP/MBT | HIV integrase-binding domain | 3 | 1 |  |
| PDZ domain-like | C2 domain (Calcium/lipid-binding domain, CaLB) | 3 | 3 |  |
| PUA domain-like | Nucleotidylyl transferase | 3 | 1 |  |
| Sema domain | Protein kinase-like (PK-like) | 3 | 3 |  |
| EGF/Laminin | Heme-dependent peroxidases | 3 | 2 |  |
| E set domains | Protein kinase-like (PK-like) | 3 | 3 |  |
| Tumor suppressor gene product Apc | ARM repeat | 3 | 2 |  |
| BRCT domain | P-loop containing nucleoside triphosphate hydrolases | 3 | 2 |  |
| Molybdenum cofactor biosynthesis proteins | Molybdenum cofactor biosynthesis proteins | 3 | 1 |  |
| SH3-domain | CAD & PB1 domains | 3 | 2 |  |
| CAD & PB1 domains | RING/U-box | 3 | 2 |  |
| Phospholipase A2, PLA2 | Phospholipase A2, PLA2 | 3 | 2 |  |
| CBS-domain pair | cAMP-binding domain-like | 3 | 2 |  |
| Ribosomal protein L25-like | Class II aaRS ABD-related | 3 | 1 |  |
| Plexin repeat | Protein kinase-like (PK-like) | 3 | 3 |  |
| p53-like transcription factors | Ankyrin repeat | 3 | 1 |  |
| TAZ domain | Nuclear receptor coactivator interlocking domain | 3 | 1 |  |
| DNase I-like | GTPase activation domain, GAP | 3 | 1 |  |
| BRCA2 helical domain | Nucleic acid-binding proteins | 3 | 1 |  |
| Chaperone J-domain | Homeodomain-like | 3 | 2 |  |
| RuvA domain 2-like | RuvA domain 2-like | 3 | 3 |  |
| "Winged helix" DNA-binding domain | Regulator of G-protein signaling, RGS | 3 | 1 |  |
| p53-like transcription factors | DEATH domain | 3 | 1 |  |
| PH domain-like | Tropomyosin | 3 | 2 |  |
| L domain-like | P-loop containing nucleoside triphosphate hydrolases | 3 | 3 |  |
| Concanavalin A-like lectins/glucanases | TSP-1 type 1 repeat | 3 | 1 |  |
| ARM repeat | "Winged helix" DNA-binding domain | 3 | 1 |  |
| WD40 repeat-like | SNARE fusion complex | 3 | 1 |  |
| RUN domain-like | PH domain-like | 3 | 3 |  |
| ARM repeat | POZ domain | 3 | 2 |  |
| SNARE-like | SNARE fusion complex | 3 | 2 |  |
| Ribosomal protein L25-like | S15/NS1 RNA-binding domain | 3 | 1 |  |
| Arginyl-tRNA synthetase (ArgRS), N-terminal 'additional' domain | Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | 3 | 2 |  |
| NAD(P)-binding Rossmann-fold domains | Succinyl-CoA synthetase domains | 3 | 2 |  |
| Nucleic acid-binding proteins | EF-hand | 3 | 2 |  |
| WGR domain-like | Domain of poly(ADP-ribose) polymerase | 3 | 3 |  |
| GST C-terminal domain-like | Class II aaRS and biotin synthetases | 3 | 1 |  |
| Heme-dependent peroxidases | EF-hand | 3 | 1 |  |
| DNA ligase/mRNA capping enzyme, catalytic domain | BRCT domain | 3 | 2 |  |
| Ankyrin repeat | SET domain | 3 | 1 |  |
| UBC-like | RING/U-box | 3 | 2 |  |
| BPTI-like | Immunoglobulin | 3 | 3 |  |
| L domain-like | Actin depolymerizing proteins | 3 | 1 |  |
| DNA-binding domain | Bromodomain | 3 | 3 |  |
| MIT domain | P-loop containing nucleoside triphosphate hydrolases | 3 | 1 |  |
| Glycosyl hydrolase domain | Glycosyl hydrolase domain | 3 | 3 |  |
| "Winged helix" DNA-binding domain | Transducin (heterotrimeric G protein), gamma chain | 3 | 1 |  |
| Protein kinase-like (PK-like) | WD40 repeat-like | 3 | 3 |  |
| Ankyrin repeat | HIT/MYND zinc finger-like | 3 | 2 |  |
| UBA-like | Protein kinase-like (PK-like) | 3 | 2 |  |
| SH2 domain | DNase I-like | 3 | 2 |  |
| Protein kinase-like (PK-like) | Acyl-CoA dehydrogenase NM domain-like | 3 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | Homeodomain-like | 3 | 1 |  |
| Cupredoxins | Galactose-binding domain-like | 3 | 3 |  |
| DEK C-terminal domain | (Phosphotyrosine protein) phosphatases II | 3 | 1 |  |
| Trypsin-like serine proteases | PDZ domain-like | 3 | 2 |  |
| SH2 domain | SAM/Pointed domain | 3 | 2 |  |
| Ribosomal protein L25-like | C-terminal domain of ProRS | 3 | 1 |  |
| Zinc-binding domain of translation initiation factor 2 beta | ARM repeat | 3 | 1 |  |
| TPR-like | HSP20-like chaperones | 3 | 2 |  |
| Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain | VPS9 domain | 3 | 3 |  |
| Kringle-like | Spermadhesin, CUB domain | 3 | 1 |  |
| Heme-dependent peroxidases | Ferredoxin reductase-like, C-terminal NADP-linked domain | 3 | 1 |  |
| SH3-domain | PLC-like phosphodiesterases | 3 | 2 |  |
| FYVE/PHD zinc finger | SAP domain | 3 | 1 |  |
| Complement control module/SCR domain | Fibronectin type III | 3 | 3 |  |
| MFS general substrate transporter | Pentapeptide repeat-like | 3 | 1 |  |
| p53-like transcription factors | SAM/Pointed domain | 3 | 1 |  |
| Formyltransferase | ALDH-like | 3 | 2 |  |
| BRK domain-like | Bromodomain | 3 | 1 |  |
| SAP domain | P-loop containing nucleoside triphosphate hydrolases | 3 | 2 |  |
| ARID-like | ARM repeat | 3 | 1 |  |
| TRAF domain-like | POZ domain | 3 | 1 |  |
| Kazal-type serine protease inhibitors | Trypsin-like serine proteases | 3 | 2 |  |
| Fibrinogen coiled-coil and central regions | Fibrinogen C-terminal domain-like | 3 | 3 |  |
| FF domain | GTPase activation domain, GAP | 3 | 1 |  |
| MoeA N-terminal region -like | MoeA C-terminal domain-like | 3 | 1 |  |
| Translation initiation factor 2 beta, aIF2beta, N-terminal domain | ARM repeat | 3 | 1 |  |
| MIT domain | Protein kinase-like (PK-like) | 3 | 3 |  |
| Acyl-CoA N-acyltransferases (Nat) | Bromodomain | 3 | 1 |  |
| Tudor/PWWP/MBT | Galactose-binding domain-like | 3 | 2 |  |
| DNA-binding domain | FYVE/PHD zinc finger | 3 | 3 |  |
| Protein kinase-like (PK-like) | Tricorn protease domain 2 | 3 | 2 |  |
| Nucleotidylyl transferase | C-terminal domain of ProRS | 3 | 1 |  |
| Nucleic acid-binding proteins | Retrovirus zinc finger-like domains | 3 | 1 |  |
| Oligoxyloglucan reducing end-specific cellobiohydrolase | PKD domain | 3 | 3 |  |
| MgtE membrane domain-like | MgtE membrane domain-like | 3 | 2 |  |
| Chaperone J-domain | Thioredoxin-like | 3 | 2 |  |
| Bromodomain | Nuclear receptor coactivator interlocking domain | 3 | 1 |  |
| Ribosomal L27 protein-like | Eukaryotic type KH-domain (KH-domain type I) | 3 | 1 |  |
| ENTH/VHS domain | I/LWEQ domain | 3 | 2 |  |
| BAR/IMD domain-like | SH2 domain | 3 | 2 |  |
| Single hybrid motif | Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex | 3 | 2 |  |
| TAZ domain | Kix domain of CBP (creb binding protein) | 3 | 1 |  |
| Somatomedin B domain | Hemopexin-like domain | 3 | 2 |  |
| Homeodomain-like | RING/U-box | 3 | 2 |  |
| WD40 repeat-like | FYVE/PHD zinc finger | 3 | 3 |  |
| CCCH zinc finger | beta-beta-alpha zinc fingers | 3 | 3 |  |
| GST C-terminal domain-like | C-terminal domain of ProRS | 3 | 1 |  |
| SAM/Pointed domain | RING/U-box | 3 | 3 |  |
| FAS1 domain | EGF/Laminin | 3 | 3 |  |
| Histone-fold | Macro domain-like | 3 | 1 |  |
| SH3-domain | Immunoglobulin | 3 | 3 |  |
| Hairpin loop containing domain-like | Trypsin-like serine proteases | 3 | 3 |  |
| Insert subdomain of RNA polymerase alpha subunit | RBP11-like subunits of RNA polymerase | 3 | 1 |  |
| Homeodomain-like | FAD-linked reductases, C-terminal domain | 3 | 2 |  |
| AN1-like Zinc finger | AN1-like Zinc finger | 3 | 2 |  |
| TSP-1 type 1 repeat | EGF/Laminin | 3 | 1 |  |
| PYP-like sensor domain (PAS domain) | Nuclear receptor coactivator interlocking domain | 3 | 1 |  |
| Nucleic acid-binding proteins | BRCA2 tower domain | 3 | 1 |  |
| Folate-binding domain | Aminomethyltransferase beta-barrel domain | 3 | 2 |  |
| N-terminal domain of alpha and beta subunits of F1 ATP synthase | C-terminal domain of alpha and beta subunits of F1 ATP synthase | 3 | 2 |  |
| FMT C-terminal domain-like | ALDH-like | 3 | 2 |  |
| Nucleotidylyl transferase | Class II aaRS ABD-related | 3 | 1 |  |
| Kelch motif | Fibronectin type III | 3 | 1 |  |
| HMA, heavy metal-associated domain | HAD-like | 3 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | Prefoldin | 3 | 2 |  |
| RNA-binding domain, RBD | dsRNA-binding domain-like | 3 | 2 |  |
| DBL homology domain (DH-domain) | DBL homology domain (DH-domain) | 3 | 3 |  |
| Galactose mutarotase-like | Galactose mutarotase-like | 3 | 3 |  |
| L domain-like | PDZ domain-like | 3 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | C-terminal domain of alpha and beta subunits of F1 ATP synthase | 3 | 2 |  |
| Hairpin loop containing domain-like | Kringle-like | 3 | 3 |  |
| SAP domain | RING/U-box | 3 | 1 |  |
| Growth factor receptor domain | Spermadhesin, CUB domain | 3 | 3 |  |
| Calponin-homology domain, CH-domain | SH2 domain | 3 | 1 |  |
| FAD-linked reductases, C-terminal domain | Folate-binding domain | 3 | 2 |  |
| ARM repeat | Rap/Ran-GAP | 3 | 1 |  |
| Spectrin repeat | GAS2 domain-like | 3 | 3 |  |
| Tudor/PWWP/MBT | HIT/MYND zinc finger-like | 3 | 2 |  |
| Tudor/PWWP/MBT | ARID-like | 3 | 2 |  |
| HAND domain of the nucleosome remodeling ATPase ISWI | Homeodomain-like | 3 | 1 |  |
| cAMP-binding domain-like | FabD/lysophospholipase-like | 3 | 1 |  |
| FnI-like domain | TSP type-3 repeat | 3 | 1 |  |
| L domain-like | DNase I-like | 3 | 1 |  |
| Rap30/74 interaction domains | "Winged helix" DNA-binding domain | 3 | 2 |  |
| TPR-like | PUA domain-like | 3 | 2 |  |
| PLP-binding barrel | Alanine racemase C-terminal domain-like | 3 | 2 |  |
| PriA/YqbF domain | GINS helical bundle-like | 3 | 2 |  |
| POZ domain | Skp1 dimerisation domain-like | 3 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | Protein kinase-like (PK-like) | 3 | 2 |  |
| beta-beta-alpha zinc fingers | Leucine zipper domain | 3 | 1 |  |
| DNA-binding protein LAG-1 (CSL) | E set domains | 3 | 1 |  |
| Tudor/PWWP/MBT | Chromo domain-like | 3 | 2 |  |
| PK beta-barrel domain-like | PK C-terminal domain-like | 3 | 1 |  |
| Protein kinase-like (PK-like) | L27 domain | 3 | 1 |  |
| SAP domain | Concanavalin A-like lectins/glucanases | 3 | 2 |  |
| Nucleic acid-binding proteins | BRCT domain | 3 | 2 |  |
| Histone-fold | ARM repeat | 3 | 2 |  |
| Bromodomain | HIT/MYND zinc finger-like | 3 | 2 |  |
| PX domain | Outer arm dynein light chain 1 | 3 | 2 |  |
| RING/U-box | Trimerization domain of TRAF | 3 | 2 |  |
| Protein kinase-like (PK-like) | RCC1/BLIP-II | 3 | 2 |  |
| WWE domain | WWE domain | 3 | 2 |  |
| TAZ domain | Bromodomain | 3 | 1 |  |
| DUSP-like | Ubiquitin-like | 3 | 2 |  |
| Creatinase/aminopeptidase | "Winged helix" DNA-binding domain | 3 | 2 |  |
| EGF/Laminin | NHL repeat | 3 | 3 |  |
| P-loop containing nucleoside triphosphate hydrolases | HAND domain of the nucleosome remodeling ATPase ISWI | 3 | 1 |  |
| UBC-like | UBA-like | 2 | 1 |  |
| L domain-like | PP2C-like | 2 | 1 |  |
| NAD(P)-binding Rossmann-fold domains | NAD(P)-binding Rossmann-fold domains | 2 | 2 |  |
| DBL homology domain (DH-domain) | VPS9 domain | 2 | 2 |  |
| GFP-like | YWTD domain | 2 | 2 |  |
| PX domain | MIT domain | 2 | 2 |  |
| Calponin-homology domain, CH-domain | Ubiquitin-like | 2 | 1 |  |
| vWA-like | SPOC domain-like | 2 | 2 |  |
| Carbamoyl phosphate synthetase, small subunit N-terminal domain | Carbamoyl phosphate synthetase, large subunit connection domain | 2 | 2 |  |
| FnI-like domain | Kringle-like | 2 | 2 |  |
| NHL repeat | Soluble quinoprotein glucose dehydrogenase | 2 | 1 |  |
| Ubiquitin-like | Zn-binding ribosomal proteins | 2 | 2 |  |
| LDL receptor-like module | L domain-like | 2 | 1 |  |
| Growth factor receptor domain | PDZ domain-like | 2 | 1 |  |
| F1F0 ATP synthase subunit C | F1F0 ATP synthase subunit C | 2 | 2 |  |
| FnI-like domain | L domain-like | 2 | 2 |  |
| PRP4-like | Functional domain of the splicing factor Prp18 | 2 | 1 |  |
| WD40 repeat-like | Cysteine proteinases | 2 | 1 |  |
| TPR-like | CAD & PB1 domains | 2 | 1 |  |
| Calponin-homology domain, CH-domain | RING/U-box | 2 | 1 |  |
| LDL receptor-like module | Protein kinase-like (PK-like) | 2 | 2 |  |
| RNA-binding domain, RBD | beta-beta-alpha zinc fingers | 2 | 2 |  |
| Protein kinase-like (PK-like) | Class II aaRS and biotin synthetases | 2 | 1 |  |
| Tropomyosin | Smc hinge domain | 2 | 2 |  |
| SAM/Pointed domain | ArfGap/RecO-like zinc finger | 2 | 1 |  |
| ACT-like | ACT-like | 2 | 1 |  |
| vWA-like | BPTI-like | 2 | 2 |  |
| TPR-like | RNI-like | 2 | 2 |  |
| Elafin-like | Kazal-type serine protease inhibitors | 2 | 2 |  |
| L domain-like | Hormone receptor domain | 2 | 1 |  |
| Nucleoside diphosphate kinase, NDK | Nucleoside diphosphate kinase, NDK | 2 | 2 |  |
| Ankyrin repeat | RNI-like | 2 | 2 |  |
| GFP-like | Thyroglobulin type-1 domain | 2 | 2 |  |
| alpha/beta-Hydrolases | alpha/beta-Hydrolases | 2 | 2 |  |
| Nucleic acid-binding proteins | eIF2alpha middle domain-like | 2 | 1 |  |
| Ubiquitin-like | Ankyrin repeat | 2 | 2 |  |
| Metallo-hydrolase/oxidoreductase | Metallo-hydrolase/oxidoreductase | 2 | 1 |  |
| F-box domain | P-loop containing nucleoside triphosphate hydrolases | 2 | 1 |  |
| Ubiquitin-like | ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | 2 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Microbial and mitochondrial ADK, insert "zinc finger" domain | 2 | 2 |  |
| NagB/RpiA/CoA transferase-like | D-ribose-5-phosphate isomerase (RpiA), lid domain | 2 | 1 |  |
| Apolipoprotein | Apolipoprotein A-I | 2 | 1 |  |
| Kazal-type serine protease inhibitors | PDZ domain-like | 2 | 1 |  |
| UBC-like | Class II aaRS and biotin synthetases | 2 | 1 |  |
| PH domain-like | Glycolipid transfer protein, GLTP | 2 | 1 |  |
| Multidrug efflux transporter AcrB transmembrane domain | NAD-binding domain of HMG-CoA reductase | 2 | 1 |  |
| CCCH zinc finger | Retrovirus zinc finger-like domains | 2 | 2 |  |
| Apolipoprotein | Apolipoprotein | 2 | 1 |  |
| Rabenosyn-5 Rab-binding domain-like | Rabenosyn-5 Rab-binding domain-like | 2 | 1 |  |
| NagB/RpiA/CoA transferase-like | NagB/RpiA/CoA transferase-like | 2 | 1 |  |
| Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment | Eukaryotic DNA topoisomerase I, dispensable insert domain | 2 | 1 |  |
| Obg GTP-binding protein N-terminal domain | P-loop containing nucleoside triphosphate hydrolases | 2 | 2 |  |
| N-terminal coiled coil domain from apc | Tumor suppressor gene product Apc | 2 | 1 |  |
| vWA-like | Trypsin-like serine proteases | 2 | 1 |  |
| Lipase/lipooxygenase domain (PLAT/LH2 domain) | Lipase/lipooxygenase domain (PLAT/LH2 domain) | 2 | 2 |  |
| Mib/herc2 domain-like | Hect, E3 ligase catalytic domain | 2 | 2 |  |
| Rhodanese/Cell cycle control phosphatase | Rhodanese/Cell cycle control phosphatase | 2 | 1 |  |
| UBA-like | Hect, E3 ligase catalytic domain | 2 | 1 |  |
| Ribosomal protein S5 domain 2-like | HMG-box | 2 | 1 |  |
| UBA-like | WWE domain | 2 | 1 |  |
| UBA-like | Thioredoxin-like | 2 | 1 |  |
| PAZ domain | dsRNA-binding domain-like | 2 | 1 |  |
| RCC1/BLIP-II | RING/U-box | 2 | 1 |  |
| Immunoglobulin | Family A G protein-coupled receptor-like | 2 | 2 |  |
| F-box domain | ApaG-like | 2 | 1 |  |
| Ankyrin repeat | Nudix | 2 | 2 |  |
| TPR-like | CCCH zinc finger | 2 | 2 |  |
| KRAB domain (Kruppel-associated box) | KRAB domain (Kruppel-associated box) | 2 | 2 |  |
| Concanavalin A-like lectins/glucanases | Protein kinase-like (PK-like) | 2 | 2 |  |
| LEM domain | RNA-binding domain, RBD | 2 | 1 |  |
| Spermadhesin, CUB domain | LCCL domain | 2 | 2 |  |
| Nucleic acid-binding proteins | SAP domain | 2 | 1 |  |
| E set domains | AMPKBI-like | 2 | 1 |  |
| Thiamin diphosphate-binding fold (THDP-binding) | DHS-like NAD/FAD-binding domain | 2 | 1 |  |
| beta-N-acetylhexosaminidase-like domain | (Trans)glycosidases | 2 | 1 |  |
| PH domain-like | Bet v1-like | 2 | 1 |  |
| FAD-linked reductases, C-terminal domain | Aminomethyltransferase beta-barrel domain | 2 | 1 |  |
| Plakin repeat | EF-hand | 2 | 2 |  |
| L domain-like | WD40 repeat-like | 2 | 2 |  |
| EGF/Laminin | EF-hand | 2 | 1 |  |
| Carbamoyl phosphate synthetase, small subunit N-terminal domain | Glutathione synthetase ATP-binding domain-like | 2 | 2 |  |
| Oligoxyloglucan reducing end-specific cellobiohydrolase | YWTD domain | 2 | 2 |  |
| "Winged helix" DNA-binding domain | SAICAR synthase-like | 2 | 1 |  |
| PR-1-like | LCCL domain | 2 | 1 |  |
| Tudor/PWWP/MBT | HMG-box | 2 | 2 |  |
| Chaperone J-domain | ARM repeat | 2 | 1 |  |
| FYVE/PHD zinc finger | Rabenosyn-5 Rab-binding domain-like | 2 | 1 |  |
| beta-sandwich domain of Sec23/24 | beta-sandwich domain of Sec23/24 | 2 | 2 |  |
| CRAL/TRIO N-terminal domain | PapD-like | 2 | 1 |  |
| RNA-binding domain, RBD | Surp module (SWAP domain) | 2 | 1 |  |
| C-terminal, gelsolin-like domain of Sec23/24 | C-terminal, gelsolin-like domain of Sec23/24 | 2 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | Nucleic acid-binding proteins | 2 | 1 |  |
| Calpain large subunit, middle domain (domain III) | C2 domain (Calcium/lipid-binding domain, CaLB) | 2 | 1 |  |
| PreATP-grasp domain | Methylglyoxal synthase-like | 2 | 2 |  |
| (Phosphotyrosine protein) phosphatases II | FYVE/PHD zinc finger | 2 | 1 |  |
| SH3-domain | S-adenosyl-L-methionine-dependent methyltransferases | 2 | 2 |  |
| Galactose-binding domain-like | Mib/herc2 domain-like | 2 | 2 |  |
| C-terminal (heme d1) domain of cytochrome cd1-nitrite reductase | WD40 repeat-like | 2 | 2 |  |
| UBA-like | Phosphoglycerate mutase-like | 2 | 1 |  |
| PKD domain | Lipase/lipooxygenase domain (PLAT/LH2 domain) | 2 | 2 |  |
| Chromo domain-like | SET domain | 2 | 1 |  |
| Thyroglobulin type-1 domain | YWTD domain | 2 | 2 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | ATP-dependent DNA ligase DNA-binding domain | 2 | 1 |  |
| SAM/Pointed domain | Toll/Interleukin receptor TIR domain | 2 | 2 |  |
| N-terminal nucleophile aminohydrolases (Ntn hydrolases) | SIS domain | 2 | 1 |  |
| Acyl-CoA binding protein | ClpP/crotonase | 2 | 2 |  |
| Clathrin heavy-chain terminal domain | ARM repeat | 2 | 1 |  |
| WD40 repeat-like | Ribonuclease H-like | 2 | 1 |  |
| N-terminal domain of MutM-like DNA repair proteins | S13-like H2TH domain | 2 | 2 |  |
| beta-lactamase/transpeptidase-like | Ankyrin repeat | 2 | 1 |  |
| Adenine nucleotide alpha hydrolases-like | DHS-like NAD/FAD-binding domain | 2 | 1 |  |
| Amine oxidase N-terminal region | Amine oxidase catalytic domain | 2 | 2 |  |
| TPR-like | PIN domain-like | 2 | 1 |  |
| Acyl-CoA binding protein | Supernatant protein factor (SPF), C-terminal domain | 2 | 2 |  |
| Plakin repeat | GAS2 domain-like | 2 | 2 |  |
| SPOC domain-like | SAP domain | 2 | 2 |  |
| Concanavalin A-like lectins/glucanases | SOCS box-like | 2 | 1 |  |
| CalX-like | Concanavalin A-like lectins/glucanases | 2 | 2 |  |
| Ankyrin repeat | Fibronectin type III | 2 | 2 |  |
| Histone-fold | PH domain-like | 2 | 2 |  |
| Glutathione synthetase ATP-binding domain-like | Carbamoyl phosphate synthetase, large subunit connection domain | 2 | 2 |  |
| Snake toxin-like | Snake toxin-like | 2 | 2 |  |
| Rad51 N-terminal domain-like | P-loop containing nucleoside triphosphate hydrolases | 2 | 1 |  |
| TPR-like | Clavaminate synthase-like | 2 | 2 |  |
| ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | 2 | 1 |  |
| Tropomyosin | FYVE/PHD zinc finger | 2 | 1 |  |
| Metalloproteases ("zincins"), catalytic domain | TRAF domain-like | 2 | 2 |  |
| Tudor/PWWP/MBT | ARM repeat | 2 | 1 |  |
| Carbamoyl phosphate synthetase, small subunit N-terminal domain | Methylglyoxal synthase-like | 2 | 2 |  |
| PreATP-grasp domain | Carbamoyl phosphate synthetase, large subunit connection domain | 2 | 2 |  |
| PDZ domain-like | Nitric oxide (NO) synthase oxygenase domain | 2 | 2 |  |
| GroEL apical domain-like | SAICAR synthase-like | 2 | 1 |  |
| S13-like H2TH domain | Glucocorticoid receptor-like (DNA-binding domain) | 2 | 2 |  |
| RING/U-box | BRCT domain | 2 | 2 |  |
| PDZ domain-like | Riboflavin synthase domain-like | 2 | 2 |  |
| Cap-Gly domain | Ubiquitin-like | 2 | 2 |  |
| Spermadhesin, CUB domain | Frizzled cysteine-rich domain | 2 | 1 |  |
| Ribonuclease H-like | Ribonuclease H-like | 2 | 2 |  |
| GroEL-intermediate domain like | SAICAR synthase-like | 2 | 1 |  |
| FAD-binding/transporter-associated domain-like | FAD-linked oxidases, C-terminal domain | 2 | 2 |  |
| Eukaryotic type KH-domain (KH-domain type I) | Tudor/PWWP/MBT | 2 | 2 |  |
| RNA-binding domain, RBD | RING/U-box | 2 | 2 |  |
| Tudor/PWWP/MBT | CCHHC domain | 2 | 2 |  |
| Cysteine proteinases | HIT/MYND zinc finger-like | 2 | 1 |  |
| Ubiquitin-like | XPC-binding domain | 2 | 2 |  |
| Oligoxyloglucan reducing end-specific cellobiohydrolase | LDL receptor-like module | 2 | 2 |  |
| POZ domain | FYVE/PHD zinc finger | 2 | 2 |  |
| Class I glutamine amidotransferase-like | PreATP-grasp domain | 2 | 2 |  |
| PDZ domain-like | Ras GEF | 2 | 2 |  |
| FAS1 domain | C-type lectin-like | 2 | 2 |  |
| EGF/Laminin | Thyroglobulin type-1 domain | 2 | 2 |  |
| HSP20-like chaperones | Cysteine proteinases | 2 | 1 |  |
| Concanavalin A-like lectins/glucanases | Assembly domain of cartilage oligomeric matrix protein | 2 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | SOCS box-like | 2 | 1 |  |
| Ubiquitin-like | Chaperone J-domain | 2 | 1 |  |
| ITPase-like | S-adenosyl-L-methionine-dependent methyltransferases | 2 | 1 |  |
| (Trans)glycosidases | Invertebrate chitin-binding proteins | 2 | 1 |  |
| DNA breaking-rejoining enzymes | Eukaryotic DNA topoisomerase I, dispensable insert domain | 2 | 1 |  |
| Galactose-binding domain-like | Kelch motif | 2 | 1 |  |
| Ankyrin repeat | FYVE/PHD zinc finger | 2 | 2 |  |
| DBL homology domain (DH-domain) | Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain | 2 | 2 |  |
| Kringle-like | Protein kinase-like (PK-like) | 2 | 2 |  |
| LEM domain | LEM domain | 2 | 1 |  |
| Class II aaRS and biotin synthetases | Translation proteins | 2 | 1 |  |
| TSP-1 type 1 repeat | Complement control module/SCR domain | 2 | 2 |  |
| Formiminotransferase domain of formiminotransferase-cyclodeaminase. | Formiminotransferase domain of formiminotransferase-cyclodeaminase. | 2 | 1 |  |
| E set domains | Galactose-binding domain-like | 2 | 1 |  |
| Family A G protein-coupled receptor-like | Family A G protein-coupled receptor-like | 2 | 2 |  |
| R1 subunit of ribonucleotide reductase, N-terminal domain | PFL-like glycyl radical enzymes | 2 | 1 |  |
| EF-hand | Tropomyosin | 2 | 1 |  |
| L30e-like | alpha/beta knot | 2 | 2 |  |
| Histone-fold | DBL homology domain (DH-domain) | 2 | 2 |  |
| CRAL/TRIO domain | GTPase activation domain, GAP | 2 | 2 |  |
| (Trans)glycosidases | Six-hairpin glycosidases | 2 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | AN1-like Zinc finger | 2 | 2 |  |
| Ubiquitin-like | TPR-like | 2 | 1 |  |
| PYP-like sensor domain (PAS domain) | HD-domain/PDEase-like | 2 | 1 |  |
| VPS9 domain | Ubiquitin-like | 2 | 2 |  |
| L domain-like | DEATH domain | 2 | 1 |  |
| Immunoglobulin | TIMP-like | 2 | 2 |  |
| SMAD/FHA domain | PDZ domain-like | 2 | 2 |  |
| Spectrin repeat | Immunoglobulin | 2 | 2 |  |
| UBA-like | CCCH zinc finger | 2 | 1 |  |
| HIT/MYND zinc finger-like | TPR-like | 2 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | Cysteine-rich domain | 2 | 2 |  |
| Tudor/PWWP/MBT | BRCT domain | 2 | 1 |  |
| ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | Nucleotidyltransferase substrate binding subunit/domain | 2 | 1 |  |
| "Winged helix" DNA-binding domain | dsRNA-binding domain-like | 2 | 2 |  |
| RuvA domain 2-like | Nucleic acid-binding proteins | 2 | 2 |  |
| RING/U-box | DUSP-like | 2 | 1 |  |
| SMAD/FHA domain | Cap-Gly domain | 2 | 1 |  |
| HMA, heavy metal-associated domain | Calcium ATPase, transduction domain A | 2 | 2 |  |
| WD40 repeat-like | Ypt/Rab-GAP domain of gyp1p | 2 | 1 |  |
| Calpain large subunit, middle domain (domain III) | Calpain large subunit, middle domain (domain III) | 2 | 2 |  |
| PDZ domain-like | BAR/IMD domain-like | 2 | 2 |  |
| BAR/IMD domain-like | Protein kinase-like (PK-like) | 2 | 1 |  |
| Metallo-dependent phosphatases | 5'-nucleotidase (syn. UDP-sugar hydrolase), C-terminal domain | 2 | 2 |  |
| Kelch motif | EGF/Laminin | 2 | 2 |  |
| CRAL/TRIO domain | Immunoglobulin | 2 | 2 |  |
| EF-hand | Rhomboid-like | 2 | 2 |  |
| Tudor/PWWP/MBT | Staphylococcal nuclease | 2 | 2 |  |
| Galactose-binding domain-like | BRCT domain | 2 | 1 |  |
| Thioredoxin-like | NHL repeat | 2 | 1 |  |
| Lissencephaly-1 protein (Lis-1, PAF-AH alpha) N-terminal domain | WD40 repeat-like | 2 | 1 |  |
| RCC1/BLIP-II | E set domains | 2 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Fzo-like conserved region | 2 | 2 |  |
| Thioesterase/thiol ester dehydrase-isomerase | Bet v1-like | 2 | 2 |  |
| Assembly domain of cartilage oligomeric matrix protein | EGF/Laminin | 2 | 2 |  |
| Zn-dependent exopeptidases | Zn-dependent exopeptidases | 2 | 1 |  |
| Kelch motif | C-type lectin-like | 2 | 2 |  |
| ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | HMG-box | 2 | 1 |  |
| PDZ domain-like | Myosin rod fragments | 2 | 1 |  |
| MPN010-like | SAM/Pointed domain | 2 | 1 |  |
| Class II MHC-associated invariant chain ectoplasmic trimerization domain | Thyroglobulin type-1 domain | 2 | 1 |  |
| Cytochrome b5-like heme/steroid binding domain | HSP20-like chaperones | 2 | 1 |  |
| ADP-ribosylation | vWA-like | 2 | 2 |  |
| cAMP-binding domain-like | Protein kinase-like (PK-like) | 2 | 2 |  |
| Spectrin repeat | Protein kinase-like (PK-like) | 2 | 2 |  |
| HSP20-like chaperones | HSP20-like chaperones | 2 | 1 |  |
| NAD-binding domain of HMG-CoA reductase | Substrate-binding domain of HMG-CoA reductase | 2 | 1 |  |
| HSP20-like chaperones | HIT/MYND zinc finger-like | 2 | 1 |  |
| FAD/NAD(P)-binding domain | EF-hand | 2 | 1 |  |
| Soluble quinoprotein glucose dehydrogenase | WD40 repeat-like | 2 | 2 |  |
| TNF-like | TNF-like | 2 | 1 |  |
| WD40 repeat-like | UBC-like | 2 | 1 |  |
| Oligoxyloglucan reducing end-specific cellobiohydrolase | Fibronectin type III | 2 | 2 |  |
| Immunoglobulin | Kringle-like | 2 | 2 |  |
| Putative anticodon-binding domain of alanyl-tRNA synthetase (AlaRS) | ThrRS/AlaRS common domain | 2 | 1 |  |
| RING/U-box | PDZ domain-like | 2 | 1 |  |
| BRCT domain | ADP-ribosylation | 2 | 2 |  |
| Coiled-coil domain of nucleotide exchange factor GrpE | Head domain of nucleotide exchange factor GrpE | 2 | 1 |  |
| UBA-like | P-loop containing nucleoside triphosphate hydrolases | 2 | 1 |  |
| PH domain-like | PP2C-like | 2 | 1 |  |
| Oligoxyloglucan reducing end-specific cellobiohydrolase | Oligoxyloglucan reducing end-specific cellobiohydrolase | 2 | 2 |  |
| Inhibitor of apoptosis (IAP) repeat | DEATH domain | 2 | 2 |  |
| Amine oxidase N-terminal region | Amine oxidase N-terminal region | 2 | 2 |  |
| HSP20-like chaperones | Ferredoxin reductase-like, C-terminal NADP-linked domain | 2 | 1 |  |
| DNA-binding domain | SET domain | 2 | 1 |  |
| TAF(II)230 TBP-binding fragment | Bromodomain | 2 | 1 |  |
| Class I glutamine amidotransferase-like | Methylglyoxal synthase-like | 2 | 2 |  |
| Nucleotidylyl transferase | Nucleotidylyl transferase | 2 | 1 |  |
| F-box domain | Concanavalin A-like lectins/glucanases | 2 | 1 |  |
| ACP-like | ALDH-like | 2 | 1 |  |
| Immunoglobulin | Hormone receptor domain | 2 | 1 |  |
| PX domain | Retrovirus zinc finger-like domains | 2 | 2 |  |
| UBA-like | XPC-binding domain | 2 | 2 |  |
| RNA-binding domain, RBD | Tricorn protease domain 2 | 2 | 1 |  |
| GLA-domain | Growth factor receptor domain | 2 | 1 |  |
| FYVE/PHD zinc finger | F-box domain | 2 | 1 |  |
| eIF2alpha middle domain-like | eIF-2-alpha, C-terminal domain | 2 | 1 |  |
| LEM domain | Ankyrin repeat | 2 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | PAZ domain | 2 | 1 |  |
| DNA repair protein MutS, domain I | DNA repair protein MutS, domain III | 2 | 2 |  |
| beta-Galactosidase/glucuronidase domain | (Trans)glycosidases | 2 | 2 |  |
| Ypt/Rab-GAP domain of gyp1p | SH3-domain | 2 | 1 |  |
| F-box domain | SMI1/KNR4-like | 2 | 1 |  |
| Elafin-like | Immunoglobulin | 2 | 2 |  |
| PDZ domain-like | GTPase activation domain, GAP | 2 | 2 |  |
| PX domain | TPR-like | 2 | 1 |  |
| Immunoglobulin | 3-carboxy-cis,cis-mucoante lactonizing enzyme | 2 | 2 |  |
| Quinoprotein alcohol dehydrogenase-like | C-terminal (heme d1) domain of cytochrome cd1-nitrite reductase | 2 | 2 |  |
| PreATP-grasp domain | PreATP-grasp domain | 2 | 2 |  |
| Ankyrin repeat | Second domain of FERM | 2 | 1 |  |
| NHL repeat | WD40 repeat-like | 2 | 2 |  |
| SWIB/MDM2 domain | Ran binding protein zinc finger-like | 2 | 2 |  |
| Domain of the SRP/SRP receptor G-proteins | P-loop containing nucleoside triphosphate hydrolases | 2 | 2 |  |
| Carboxypeptidase regulatory domain-like | Soluble quinoprotein glucose dehydrogenase | 2 | 1 |  |
| EGF/Laminin | Tropomyosin | 2 | 2 |  |
| Cysteine proteinases | Ribonuclease H-like | 2 | 1 |  |
| Chitinase insertion domain | Invertebrate chitin-binding proteins | 2 | 1 |  |
| ARM repeat | Zn-dependent exopeptidases | 2 | 1 |  |
| Domain of poly(ADP-ribose) polymerase | vWA-like | 2 | 2 |  |
| "Winged helix" DNA-binding domain | GroEL-intermediate domain like | 2 | 1 |  |
| TPR-like | UBA-like | 2 | 1 |  |
| Immunoglobulin | Caspase-like | 2 | 1 |  |
| HMG-box | Chromo domain-like | 2 | 1 |  |
| Cysteine proteinases | EPT/RTPC-like | 2 | 2 |  |
| SMI1/KNR4-like | ApaG-like | 2 | 1 |  |
| Assembly domain of cartilage oligomeric matrix protein | TSP type-3 repeat | 2 | 2 |  |
| Voltage-gated potassium channels | EF-hand | 2 | 2 |  |
| PDZ domain-like | Ferredoxin reductase-like, C-terminal NADP-linked domain | 2 | 2 |  |
| Cytochrome b5-like heme/steroid binding domain | Riboflavin synthase domain-like | 2 | 1 |  |
| Metalloproteases ("zincins"), catalytic domain | Fibronectin type III | 2 | 2 |  |
| HBS1-like domain | P-loop containing nucleoside triphosphate hydrolases | 2 | 1 |  |
| TPR-like | beta-beta-alpha zinc fingers | 2 | 2 |  |
| PHM/PNGase F | Calcium-dependent phosphotriesterase | 2 | 2 |  |
| PDZ domain-like | Flavoproteins | 2 | 2 |  |
| SEA domain | Spermadhesin, CUB domain | 2 | 2 |  |
| Radical SAM enzymes | Acyl-CoA N-acyltransferases (Nat) | 2 | 1 |  |
| 4Fe-4S ferredoxins | P-loop containing nucleoside triphosphate hydrolases | 2 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Cap-Gly domain | 2 | 1 |  |
| Myosin rod fragments | FYVE/PHD zinc finger | 2 | 1 |  |
| BRCT domain | PH domain-like | 2 | 1 |  |
| Ubiquitin-like | SMAD/FHA domain | 2 | 2 |  |
| Formiminotransferase domain of formiminotransferase-cyclodeaminase. | Methenyltetrahydrofolate cyclohydrolase-like | 2 | 1 |  |
| WD40 repeat-like | SOCS box-like | 2 | 2 |  |
| ITPase-like | "Winged helix" DNA-binding domain | 2 | 1 |  |
| Bcr-Abl oncoprotein oligomerization domain | PH domain-like | 2 | 1 |  |
| E set domains | Hect, E3 ligase catalytic domain | 2 | 1 |  |
| Metalloproteases ("zincins"), catalytic domain | Metalloproteases ("zincins"), catalytic domain | 2 | 2 |  |
| HMG-box | P-loop containing nucleoside triphosphate hydrolases | 2 | 1 |  |
| Ankyrin repeat | Hect, E3 ligase catalytic domain | 2 | 2 |  |
| Ubiquitin-like | SAM/Pointed domain | 2 | 2 |  |
| Carboxypeptidase regulatory domain-like | Carboxypeptidase regulatory domain-like | 2 | 1 |  |
| BRCT domain | DBL homology domain (DH-domain) | 2 | 1 |  |
| ARM repeat | GTPase activation domain, GAP | 2 | 1 |  |
| UDP-Glycosyltransferase/glycogen phosphorylase | UDP-Glycosyltransferase/glycogen phosphorylase | 2 | 2 |  |
| Regulator of G-protein signaling, RGS | Regulator of G-protein signaling, RGS | 2 | 2 |  |
| PH domain-like | HMG-box | 2 | 1 |  |
| Putative anticodon-binding domain of alanyl-tRNA synthetase (AlaRS) | Translation proteins | 2 | 1 |  |
| Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain | SET domain | 2 | 1 |  |
| BPTI-like | TIMP-like | 2 | 2 |  |
| Mannose 6-phosphate receptor domain | Kringle-like | 2 | 1 |  |
| N-terminal coiled coil domain from apc | ARM repeat | 2 | 1 |  |
| FYVE/PHD zinc finger | GroEL-intermediate domain like | 2 | 1 |  |
| Rhomboid-like | UBA-like | 2 | 1 |  |
| Ankyrin repeat | DBL homology domain (DH-domain) | 2 | 1 |  |
| EGF/Laminin | Kringle-like | 2 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | RNase III domain-like | 2 | 1 |  |
| TPR-like | Chaperone J-domain | 2 | 1 |  |
| LDL receptor-like module | Mannose 6-phosphate receptor domain | 2 | 1 |  |
| Multidrug efflux transporter AcrB transmembrane domain | WD40 repeat-like | 2 | 1 |  |
| TPR-like | S-adenosyl-L-methionine-dependent methyltransferases | 2 | 1 |  |
| Class II aaRS and biotin synthetases | Putative anticodon-binding domain of alanyl-tRNA synthetase (AlaRS) | 2 | 1 |  |
| GLA-domain | Concanavalin A-like lectins/glucanases | 2 | 1 |  |
| Dcp2 domain-like | Nudix | 2 | 1 |  |
| FAD/NAD(P)-binding domain | Aminomethyltransferase beta-barrel domain | 2 | 1 |  |
| Vacuolar ATP synthase subunit C | Vacuolar ATP synthase subunit C | 2 | 1 |  |
| WW domain | RGC domain-like | 2 | 2 |  |
| ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | Chaperone J-domain | 2 | 1 |  |
| DNase I-like | SAM/Pointed domain | 2 | 1 |  |
| FYVE/PHD zinc finger | SAICAR synthase-like | 2 | 1 |  |
| FMT C-terminal domain-like | ACP-like | 2 | 1 |  |
| FYVE/PHD zinc finger | GroEL apical domain-like | 2 | 1 |  |
| Elafin-like | TIMP-like | 2 | 2 |  |
| Kringle-like | Hemopexin-like domain | 2 | 1 |  |
| Nucleotide-binding domain | FAD-linked reductases, C-terminal domain | 2 | 1 |  |
| CRAL/TRIO domain | Protein kinase-like (PK-like) | 2 | 2 |  |
| Formyltransferase | ACP-like | 2 | 1 |  |
| 2Fe-2S ferredoxin-like | alpha-helical ferredoxin | 2 | 2 |  |
| Carbamoyl phosphate synthetase, large subunit connection domain | Methylglyoxal synthase-like | 2 | 2 |  |
| Integrin alpha N-terminal domain | Growth factor receptor domain | 2 | 2 |  |
| HIT-like | HIT-like | 2 | 1 |  |
| SEA domain | LDL receptor-like module | 2 | 2 |  |
| Chromo domain-like | Acyl-CoA N-acyltransferases (Nat) | 2 | 2 |  |
| HBS1-like domain | EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain | 2 | 1 |  |
| PAZ domain | RNase III domain-like | 2 | 1 |  |
| Inosine monophosphate dehydrogenase (IMPDH) | Inosine monophosphate dehydrogenase (IMPDH) | 2 | 1 |  |
| Myosin rod fragments | Cysteine-rich domain | 2 | 2 |  |
| EF-hand | Galactose-binding domain-like | 2 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | PRTase-like | 2 | 1 |  |
| SH2 domain | UBA-like | 2 | 2 |  |
| RNA-binding domain, RBD | Cyclophilin-like | 2 | 2 |  |
| Ankyrin repeat | Eukaryotic type KH-domain (KH-domain type I) | 2 | 2 |  |
| UBC-like | Protein kinase-like (PK-like) | 2 | 1 |  |
| SEA domain | Concanavalin A-like lectins/glucanases | 2 | 2 |  |
| Class I glutamine amidotransferase-like | Glutathione synthetase ATP-binding domain-like | 2 | 2 |  |
| UBA-like | SH3-domain | 2 | 1 |  |
| HR1 repeat | PDZ domain-like | 2 | 2 |  |
| Bromodomain | HMG-box | 2 | 2 |  |
| MIT domain | F-box domain | 2 | 1 |  |
| Second domain of FERM | RING/U-box | 2 | 1 |  |
| Bromodomain | SET domain | 2 | 1 |  |
| Metalloproteases ("zincins"), catalytic domain | Kringle-like | 2 | 1 |  |
| CRAL/TRIO domain | PapD-like | 2 | 1 |  |
| Carbamoyl phosphate synthetase, small subunit N-terminal domain | Class I glutamine amidotransferase-like | 2 | 2 |  |
| DNA repair protein MutS, domain I | P-loop containing nucleoside triphosphate hydrolases | 2 | 2 |  |
| Complement control module/SCR domain | vWA-like | 2 | 1 |  |
| Translational machinery components | L30e-like | 2 | 2 |  |
| Nucleic acid-binding proteins | TPR-like | 2 | 2 |  |
| FabD/lysophospholipase-like | Probable ACP-binding domain of malonyl-CoA ACP transacylase | 2 | 2 |  |
| PAH2 domain | Homeodomain-like | 2 | 1 |  |
| IP3 receptor type 1 binding core, domain 2 | ARM repeat | 2 | 2 |  |
| Glutathione synthetase ATP-binding domain-like | Methylglyoxal synthase-like | 2 | 2 |  |
| "Winged helix" DNA-binding domain | GroEL apical domain-like | 2 | 1 |  |
| LCCL domain | LCCL domain | 2 | 1 |  |
| ARM repeat | P-loop containing nucleoside triphosphate hydrolases | 2 | 2 |  |
| DUSP-like | DUSP-like | 2 | 1 |  |
| Fibronectin type III | BPTI-like | 2 | 2 |  |
| Chaperone J-domain | Nucleotidyltransferase substrate binding subunit/domain | 2 | 1 |  |
| Growth factor receptor domain | SEA domain | 2 | 2 |  |
| N-terminal domain of cbl (N-cbl) | UBA-like | 2 | 2 |  |
| Bcr-Abl oncoprotein oligomerization domain | GTPase activation domain, GAP | 2 | 1 |  |
| Chromo domain-like | ClpP/crotonase | 2 | 1 |  |
| Spermadhesin, CUB domain | Cystine-knot cytokines | 2 | 1 |  |
| Doublecortin (DC) | Protein kinase-like (PK-like) | 2 | 2 |  |
| PRTase-like | PRTase-like | 2 | 2 |  |
| S-adenosylmethionine synthetase | S-adenosylmethionine synthetase | 2 | 1 |  |
| DEATH domain | PDZ domain-like | 2 | 1 |  |
| PEP carboxykinase N-terminal domain | PEP carboxykinase-like | 2 | 2 |  |
| RNA-binding domain, RBD | S-adenosyl-L-methionine-dependent methyltransferases | 2 | 2 |  |
| Cysteine proteinases | C2 domain (Calcium/lipid-binding domain, CaLB) | 2 | 1 |  |
| Bcr-Abl oncoprotein oligomerization domain | DBL homology domain (DH-domain) | 2 | 1 |  |
| Kazal-type serine protease inhibitors | BPTI-like | 2 | 2 |  |
| N-terminal nucleophile aminohydrolases (Ntn hydrolases) | Adenine nucleotide alpha hydrolases-like | 2 | 2 |  |
| USP8 N-terminal domain-like | JAB1/MPN domain | 2 | 1 |  |
| POZ domain | WD40 repeat-like | 2 | 1 |  |
| Growth factor receptor domain | Complement control module/SCR domain | 2 | 2 |  |
| PGBD-like | Kringle-like | 2 | 1 |  |
| Colipase-like | Colipase-like | 2 | 1 |  |
| Ankyrin repeat | Cysteine-rich domain | 2 | 1 |  |
| Galactose-binding domain-like | Galactose oxidase, central domain | 2 | 1 |  |
| DNA polymerase beta, N-terminal domain-like | Restriction endonuclease-like | 2 | 1 |  |
| FYVE/PHD zinc finger | PDZ domain-like | 2 | 2 |  |
| HBS1-like domain | Translation proteins | 2 | 1 |  |
| Ribonuclease H-like | HRDC-like | 2 | 2 |  |
| Fumarylacetoacetate hydrolase, FAH, N-terminal domain | FAH | 2 | 1 |  |
| Ras GEF | PLC-like phosphodiesterases | 2 | 2 |  |
| MIT domain | MIT domain | 2 | 2 |  |
| Growth factor receptor domain | Trypsin-like serine proteases | 2 | 1 |  |
| Nucleic acid-binding proteins | eIF-2-alpha, C-terminal domain | 2 | 1 |  |
| PP2C-like | Protein serine/threonine phosphatase 2C, C-terminal domain | 2 | 2 |  |
| BRCT domain | Domain of poly(ADP-ribose) polymerase | 2 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | vWA-like | 2 | 2 |  |
| Myosin rod fragments | G protein-binding domain | 2 | 2 |  |
| EGF/Laminin | SEA domain | 2 | 2 |  |
| R3H domain | P-loop containing nucleoside triphosphate hydrolases | 2 | 2 |  |
| Cyclophilin-like | TPR-like | 2 | 2 |  |
| WD40 repeat-like | TPR-like | 2 | 2 |  |
| ARM repeat | EF-hand | 2 | 2 |  |
| TB module/8-cys domain | Kazal-type serine protease inhibitors | 2 | 2 |  |
| Ubiquitin-like | Acid proteases | 2 | 1 |  |
| Invasin/intimin cell-adhesion fragments | Invasin/intimin cell-adhesion fragments | 2 | 1 |  |
| Galactose-binding domain-like | beta-Galactosidase/glucuronidase domain | 2 | 2 |  |
| PH domain-like | RING/U-box | 2 | 1 |  |
| LDL receptor-like module | Complement control module/SCR domain | 2 | 2 |  |
| LDL receptor-like module | Fibronectin type III | 2 | 2 |  |
| RUN domain-like | Lipase/lipooxygenase domain (PLAT/LH2 domain) | 2 | 1 |  |
| Cytochrome b5-like heme/steroid binding domain | Ferredoxin reductase-like, C-terminal NADP-linked domain | 2 | 1 |  |
| LCCL domain | vWA-like | 2 | 2 |  |
| DPP6 N-terminal domain-like | WD40 repeat-like | 2 | 1 |  |
| Multidrug efflux transporter AcrB transmembrane domain | Substrate-binding domain of HMG-CoA reductase | 2 | 1 |  |
| PR-1-like | Crisp domain-like | 2 | 1 |  |
| N-terminal, heterodimerisation domain of RBP7 (RpoE) | Nucleic acid-binding proteins | 2 | 1 |  |
| Glutathione synthetase ATP-binding domain-like | Glutathione synthetase ATP-binding domain-like | 2 | 2 |  |
| Ubiquitin-like | Nucleotidyltransferase substrate binding subunit/domain | 2 | 1 |  |
| Nucleic acid-binding proteins | "Winged helix" DNA-binding domain | 2 | 2 |  |
| Spermadhesin, CUB domain | Kelch motif | 2 | 2 |  |
| Kazal-type serine protease inhibitors | TIMP-like | 2 | 2 |  |
| FYVE/PHD zinc finger | Supernatant protein factor (SPF), C-terminal domain | 2 | 2 |  |
| EF-hand | UBA-like | 2 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | Macro domain-like | 2 | 1 |  |
| SET domain | RuBisCo LSMT C-terminal, substrate-binding domain | 2 | 2 |  |
| Tudor/PWWP/MBT | Cullin homology domain | 2 | 1 |  |
| RNA-binding domain, RBD | SET domain | 2 | 1 |  |
| Galactose-binding domain-like | Cullin homology domain | 2 | 1 |  |
| CAD & PB1 domains | Cysteine-rich domain | 2 | 1 |  |
| cAMP-binding domain-like | PDZ domain-like | 2 | 2 |  |
| Class I glutamine amidotransferase-like | Carbamoyl phosphate synthetase, large subunit connection domain | 2 | 2 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | DNA ligase/mRNA capping enzyme, catalytic domain | 2 | 1 |  |
| EGF/Laminin | Carboxypeptidase regulatory domain-like | 2 | 2 |  |
| PUA domain-like | SWIB/MDM2 domain | 2 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | Ribonuclease H-like | 2 | 2 |  |
| EGF/Laminin | Chicken cartilage matrix protein | 2 | 2 |  |
| RUN domain-like | RUN domain-like | 2 | 1 |  |
| MOSC N-terminal domain-like | PK beta-barrel domain-like | 2 | 2 |  |
| GDNF receptor-like | GDNF receptor-like | 2 | 2 |  |
| C-type lectin-like | Growth factor receptor domain | 2 | 2 |  |
| Myosin rod fragments | PH domain-like | 2 | 2 |  |
| Histone-fold | Ras GEF | 2 | 2 |  |
| 6-phosphogluconate dehydrogenase C-terminal domain-like | 6-phosphogluconate dehydrogenase C-terminal domain-like | 2 | 2 |  |
| RNI-like | Ran-GTPase activating protein 1 (RanGAP1), C-terminal domain | 2 | 1 |  |
| ClpP/crotonase | 6-phosphogluconate dehydrogenase C-terminal domain-like | 2 | 2 |  |
| RING/U-box | Protein kinase-like (PK-like) | 2 | 1 |  |
| Protein kinase-like (PK-like) | Myosin rod fragments | 2 | 2 |  |
| ARM repeat | Ankyrin repeat | 2 | 2 |  |
| Concanavalin A-like lectins/glucanases | TRAF domain-like | 2 | 2 |  |
| Elafin-like | Fibronectin type III | 2 | 2 |  |
| P-loop containing nucleoside triphosphate hydrolases | RNA-binding domain, RBD | 2 | 1 |  |
| Carbamoyl phosphate synthetase, small subunit N-terminal domain | PreATP-grasp domain | 2 | 2 |  |
| HSP20-like chaperones | Riboflavin synthase domain-like | 2 | 1 |  |
| 4'-phosphopantetheinyl transferase | 4'-phosphopantetheinyl transferase | 2 | 1 |  |
| Ankyrin repeat | Galactose-binding domain-like | 2 | 2 |  |
| Bcr-Abl oncoprotein oligomerization domain | C2 domain (Calcium/lipid-binding domain, CaLB) | 2 | 1 |  |
| Mib/herc2 domain-like | Mib/herc2 domain-like | 2 | 1 |  |
| LDL receptor-like module | Family A G protein-coupled receptor-like | 2 | 1 |  |
| Second domain of FERM | SH3-domain | 2 | 2 |  |
| Metalloproteases ("zincins"), catalytic domain | Complement control module/SCR domain | 2 | 2 |  |
| Complement control module/SCR domain | Periplasmic binding protein-like I | 2 | 1 |  |
| AXH domain | HMG-box | 2 | 1 |  |
| Nucleotide-binding domain | Nucleotide-binding domain | 2 | 2 |  |
| Second domain of FERM | Second domain of FERM | 2 | 2 |  |
| PH domain-like | L domain-like | 2 | 1 |  |
| ARM repeat | Cullin homology domain | 2 | 1 |  |
| SAP domain | EF-hand | 2 | 1 |  |
| Eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment | DNA breaking-rejoining enzymes | 2 | 1 |  |
| ClpP/crotonase | NAD(P)-binding Rossmann-fold domains | 2 | 2 |  |
| Macro domain-like | WWE domain | 1 | 1 |  |
| (Phosphotyrosine protein) phosphatases II | Nucleic acid-binding proteins | 1 | 1 |  |
| PH domain-like | BSD domain-like | 1 | 1 |  |
| PH domain-like | VPS9 domain | 1 | 1 |  |
| (Phosphotyrosine protein) phosphatases II | DNA ligase/mRNA capping enzyme, catalytic domain | 1 | 1 |  |
| Cysteine proteinases | Tudor/PWWP/MBT | 1 | 1 |  |
| Trefoil | Trefoil | 1 | 1 |  |
| 6-phosphogluconate dehydrogenase C-terminal domain-like | UDP-glucose/GDP-mannose dehydrogenase C-terminal domain | 1 | 1 |  |
| "Winged helix" DNA-binding domain | RING/U-box | 1 | 1 |  |
| ARM repeat | Homeodomain-like | 1 | 1 |  |
| Calcyclin-binding protein-like | HSP20-like chaperones | 1 | 1 |  |
| ARM repeat | FYVE/PHD zinc finger | 1 | 1 |  |
| PX domain | GTPase activation domain, GAP | 1 | 1 |  |
| S-adenosyl-L-methionine-dependent methyltransferases | NAD(P)-binding Rossmann-fold domains | 1 | 1 |  |
| Macro domain-like | CRAL/TRIO domain | 1 | 1 |  |
| Macro domain-like | Macro domain-like | 1 | 1 |  |
| Glutathione synthetase ATP-binding domain-like | Citrate synthase | 1 | 1 |  |
| Conserved domain common to transcription factors TFIIS, elongin A, CRSP70 | CCCH zinc finger | 1 | 1 |  |
| PDZ domain-like | PX domain | 1 | 1 |  |
| Tudor/PWWP/MBT | NAD(P)-binding Rossmann-fold domains | 1 | 1 |  |
| Granulin repeat | Granulin repeat | 1 | 1 |  |
| Glutamine synthetase/guanido kinase | GatB/YqeY motif | 1 | 1 |  |
| FMN-linked oxidoreductases | 4Fe-4S ferredoxins | 1 | 1 |  |
| TROVE domain-like | vWA-like | 1 | 1 |  |
| Hypothetical protein c14orf129, hspc210 | TPR-like | 1 | 1 |  |
| Cytochrome c oxidase subunit II-like, transmembrane region | Cupredoxins | 1 | 1 |  |
| Kelch motif | NHL repeat | 1 | 1 |  |
| Clavaminate synthase-like | S-adenosyl-L-methionine-dependent methyltransferases | 1 | 1 |  |
| Probable ACP-binding domain of malonyl-CoA ACP transacylase | GroES-like | 1 | 1 |  |
| ARM repeat | Toll/Interleukin receptor TIR domain | 1 | 1 |  |
| Non-globular alpha+beta subunits of globular proteins | ISP domain | 1 | 1 |  |
| TRAF domain-like | WD40 repeat-like | 1 | 1 |  |
| Sec63 N-terminal domain-like | DNA/RNA polymerases | 1 | 1 |  |
| Growth factor receptor domain | Family A G protein-coupled receptor-like | 1 | 1 |  |
| Seven-hairpin glycosidases | PA domain | 1 | 1 |  |
| Voltage-gated potassium channels | (Phosphotyrosine protein) phosphatases II | 1 | 1 |  |
| TrmE connector domain | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 |  |
| YVTN repeat-like/Quinoprotein amine dehydrogenase | RING/U-box | 1 | 1 |  |
| Carbamoyl phosphate synthetase, large subunit connection domain | Composite domain of metallo-dependent hydrolases | 1 | 1 |  |
| Ankyrin repeat | EF-hand | 1 | 1 |  |
| POZ domain | Galactose-binding domain-like | 1 | 1 |  |
| Glutathione synthetase ATP-binding domain-like | NAD(P)-binding Rossmann-fold domains | 1 | 1 |  |
| TPR-like | Protein kinase-like (PK-like) | 1 | 1 |  |
| Homocysteine S-methyltransferase | Dihydropteroate synthetase-like | 1 | 1 |  |
| Kazal-type serine protease inhibitors | 3-carboxy-cis,cis-mucoante lactonizing enzyme | 1 | 1 |  |
| Elafin-like | Growth factor receptor domain | 1 | 1 |  |
| PurS-like | FGAM synthase PurL, linker domain | 1 | 1 |  |
| LDL receptor-like module | C-type lectin-like | 1 | 1 |  |
| DNA-binding domain | DNA-glycosylase | 1 | 1 |  |
| KRAB domain (Kruppel-associated box) | Homeodomain-like | 1 | 1 |  |
| Galactose oxidase, central domain | C-type lectin-like | 1 | 1 |  |
| WD40 repeat-like | Nucleoporin domain | 1 | 1 |  |
| FabD/lysophospholipase-like | alpha/beta-Hydrolases | 1 | 1 |  |
| Cytochrome c | Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor | 1 | 1 |  |
| L domain-like | Ubiquitin-like | 1 | 1 |  |
| beta-beta-alpha zinc fingers | WW domain | 1 | 1 |  |
| Carbamoyl phosphate synthetase, small subunit N-terminal domain | Metallo-dependent hydrolases | 1 | 1 |  |
| FYVE/PHD zinc finger | SMAD/FHA domain | 1 | 1 |  |
| Galactose oxidase, central domain | EGF/Laminin | 1 | 1 |  |
| FAD/NAD(P)-binding domain | 4Fe-4S ferredoxins | 1 | 1 |  |
| UDP-Glycosyltransferase/glycogen phosphorylase | Actin-like ATPase domain | 1 | 1 |  |
| (Trans)glycosidases | Acyl-CoA N-acyltransferases (Nat) | 1 | 1 |  |
| NAD(P)-binding Rossmann-fold domains | UDP-glucose/GDP-mannose dehydrogenase C-terminal domain | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Signal peptide-binding domain | 1 | 1 |  |
| Methionine synthase domain | Cobalamin (vitamin B12)-binding domain | 1 | 1 |  |
| N-terminal domain of eukaryotic peptide chain release factor subunit 1, ERF1 | Translational machinery components | 1 | 1 |  |
| Heme-dependent peroxidases | Complement control module/SCR domain | 1 | 1 |  |
| Fe,Mn superoxide dismutase (SOD), N-terminal domain | Fe,Mn superoxide dismutase (SOD), C-terminal domain | 1 | 1 |  |
| BAG domain | BAG domain | 1 | 1 |  |
| (Trans)glycosidases | Fibronectin type III | 1 | 1 |  |
| Elafin-like | EGF/Laminin | 1 | 1 |  |
| Nucleic acid-binding proteins | GAD domain-like | 1 | 1 |  |
| Concanavalin A-like lectins/glucanases | HCP-like | 1 | 1 |  |
| HAD-like | Acyl-CoA dehydrogenase NM domain-like | 1 | 1 |  |
| Cystine-knot cytokines | Heparin-binding domain from vascular endothelial growth factor | 1 | 1 |  |
| Translation initiation factor IF3, N-terminal domain | Translation initiation factor IF3, C-terminal domain | 1 | 1 |  |
| Microbial and mitochondrial ADK, insert "zinc finger" domain | Microbial and mitochondrial ADK, insert "zinc finger" domain | 1 | 1 |  |
| Metallo-dependent phosphatases | EF-hand | 1 | 1 |  |
| DNA repair protein MutS, domain II | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 |  |
| Ribosomal protein L7/12, oligomerisation (N-terminal) domain | ClpS-like | 1 | 1 |  |
| Cadherin-like | Dystroglycan, domain 2 | 1 | 1 |  |
| GroES-like | alpha/beta-Hydrolases | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Quinoprotein alcohol dehydrogenase-like | 1 | 1 |  |
| Band 7/SPFH domain | SCP-like | 1 | 1 |  |
| L domain-like | PKD domain | 1 | 1 |  |
| Putative DNA-binding domain | Putative DNA-binding domain | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Tryptophan synthase beta subunit-like PLP-dependent enzymes | 1 | 1 |  |
| Ankyrin repeat | FabD/lysophospholipase-like | 1 | 1 |  |
| Ribonuclease H-like | SH2 domain | 1 | 1 |  |
| Flavoproteins | Radical SAM enzymes | 1 | 1 |  |
| Protein kinase-like (PK-like) | RNA-binding domain, RBD | 1 | 1 |  |
| WD40 repeat-like | Peptidase/esterase 'gauge' domain | 1 | 1 |  |
| FAD-linked reductases, C-terminal domain | 4Fe-4S ferredoxins | 1 | 1 |  |
| EF-hand | 3-carboxy-cis,cis-mucoante lactonizing enzyme | 1 | 1 |  |
| EGF/Laminin | Calcium-dependent phosphotriesterase | 1 | 1 |  |
| Ricin B-like lectins | Fibronectin type III | 1 | 1 |  |
| RCC1/BLIP-II | PH domain-like | 1 | 1 |  |
| Nucleotide-binding domain | 4Fe-4S ferredoxins | 1 | 1 |  |
| PRTase-like | Ribulose-phoshate binding barrel | 1 | 1 |  |
| Starch-binding domain-like | Starch-binding domain-like | 1 | 1 |  |
| NAD(P)-binding Rossmann-fold domains | Citrate synthase | 1 | 1 |  |
| Serine protease inhibitors | AbfB domain | 1 | 1 |  |
| F-box domain | PH domain-like | 1 | 1 |  |
| BRCT domain | vWA-like | 1 | 1 |  |
| Carbamoyl phosphate synthetase, large subunit connection domain | Metallo-dependent hydrolases | 1 | 1 |  |
| Plexin repeat | CalX-like | 1 | 1 |  |
| N-terminal domain of eukaryotic peptide chain release factor subunit 1, ERF1 | L30e-like | 1 | 1 |  |
| Putative DNA-binding domain | Class II aaRS and biotin synthetases | 1 | 1 |  |
| Chaperone J-domain | E set domains | 1 | 1 |  |
| Methionyl-tRNA synthetase (MetRS), Zn-domain | Nucleotidylyl transferase | 1 | 1 |  |
| Ribonuclease PH domain 2-like | Polynucleotide phosphorylase/guanosine pentaphosphate synthase (PNPase/GPSI), domain 3 | 1 | 1 |  |
| Chromo domain-like | Concanavalin A-like lectins/glucanases | 1 | 1 |  |
| BRCT domain | WGR domain-like | 1 | 1 |  |
| F-box domain | YccV-like | 1 | 1 |  |
| HR1 repeat | SH3-domain | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | LigT-like | 1 | 1 |  |
| MHC antigen-recognition domain | MHC antigen-recognition domain | 1 | 1 |  |
| RING/U-box | beta-beta-alpha zinc fingers | 1 | 1 |  |
| Tex N-terminal region-like | RuvA domain 2-like | 1 | 1 |  |
| Thiolase-like | NAD(P)-binding Rossmann-fold domains | 1 | 1 |  |
| Concanavalin A-like lectins/glucanases | Trypsin-like serine proteases | 1 | 1 |  |
| GroES-like | ACP-like | 1 | 1 |  |
| Endosomal sorting complex assembly domain | VPS28 C-terminal domain-like | 1 | 1 |  |
| PurM C-terminal domain-like | PurM C-terminal domain-like | 1 | 1 |  |
| YVTN repeat-like/Quinoprotein amine dehydrogenase | Quinoprotein alcohol dehydrogenase-like | 1 | 1 |  |
| E set domains | Cupredoxins | 1 | 1 |  |
| EPT/RTPC-like | EPT/RTPC-like | 1 | 1 |  |
| PH domain-like | Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain | 1 | 1 |  |
| SIS domain | SIS domain | 1 | 1 |  |
| S-adenosyl-L-methionine-dependent methyltransferases | ACP-like | 1 | 1 |  |
| CAD & PB1 domains | His-Me finger endonucleases | 1 | 1 |  |
| SWIB/MDM2 domain | eIF1-like | 1 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | WGR domain-like | 1 | 1 |  |
| Dihydropteroate synthetase-like | Cobalamin (vitamin B12)-binding domain | 1 | 1 |  |
| PYP-like sensor domain (PAS domain) | Positive stranded ssRNA viruses | 1 | 1 |  |
| EF-hand | DUSP-like | 1 | 1 |  |
| Methionyl-tRNA synthetase (MetRS), Zn-domain | S15/NS1 RNA-binding domain | 1 | 1 |  |
| S-adenosyl-L-methionine-dependent methyltransferases | Anticodon-binding domain of PheRS | 1 | 1 |  |
| Methylglyoxal synthase-like | Metallo-dependent hydrolases | 1 | 1 |  |
| PR-1-like | C-type lectin-like | 1 | 1 |  |
| Ubiquitin-like | HAD-like | 1 | 1 |  |
| PurM C-terminal domain-like | Formyltransferase | 1 | 1 |  |
| HAD-like | alpha/beta-Hydrolases | 1 | 1 |  |
| Eukaryotic type KH-domain (KH-domain type I) | LigT-like | 1 | 1 |  |
| PKD domain | C-type lectin-like | 1 | 1 |  |
| Single hybrid motif | Single hybrid motif | 1 | 1 |  |
| WW domain | FKBP-like | 1 | 1 |  |
| S13-like H2TH domain | Ran binding protein zinc finger-like | 1 | 1 |  |
| B-box zinc-binding domain | 3-carboxy-cis,cis-mucoante lactonizing enzyme | 1 | 1 |  |
| FabD/lysophospholipase-like | ACP-like | 1 | 1 |  |
| beta-beta-alpha zinc fingers | S-adenosyl-L-methionine-dependent methyltransferases | 1 | 1 |  |
| PUG domain-like | Ran binding protein zinc finger-like | 1 | 1 |  |
| F-box domain | Sec7 domain | 1 | 1 |  |
| PH domain-like | Cyclophilin-like | 1 | 1 |  |
| Retrovirus zinc finger-like domains | RING/U-box | 1 | 1 |  |
| NAD(P)-binding Rossmann-fold domains | Serine metabolism enzymes domain | 1 | 1 |  |
| Thiolase-like | FabD/lysophospholipase-like | 1 | 1 |  |
| Saposin | Metallo-dependent phosphatases | 1 | 1 |  |
| Somatomedin B domain | Complement control module/SCR domain | 1 | 1 |  |
| Class I glutamine amidotransferase-like | Adenine nucleotide alpha hydrolases-like | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Polo-box domain | 1 | 1 |  |
| TPR-like | Metallo-dependent phosphatases | 1 | 1 |  |
| ARM repeat | L domain-like | 1 | 1 |  |
| Fibrinogen C-terminal domain-like | Fibrinogen C-terminal domain-like | 1 | 1 |  |
| B-box zinc-binding domain | TRAF domain-like | 1 | 1 |  |
| Putative DNA-binding domain | Cation efflux protein transmembrane domain-like | 1 | 1 |  |
| TRAF domain-like | EGF/Laminin | 1 | 1 |  |
| FAD/NAD(P)-binding domain | Succinate dehydrogenase/fumarate reductase flavoprotein C-terminal domain | 1 | 1 |  |
| Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain | NagB/RpiA/CoA transferase-like | 1 | 1 |  |
| Dihydropteroate synthetase-like | Methionine synthase activation domain-like | 1 | 1 |  |
| Aldolase | Single hybrid motif | 1 | 1 |  |
| R3H domain | RNA-binding domain, RBD | 1 | 1 |  |
| Thioredoxin-like | FAD-dependent thiol oxidase | 1 | 1 |  |
| Clavaminate synthase-like | Clavaminate synthase-like | 1 | 1 |  |
| Galactose oxidase, central domain | FYVE/PHD zinc finger | 1 | 1 |  |
| Rhodanese/Cell cycle control phosphatase | Cysteine proteinases | 1 | 1 |  |
| Metallo-dependent hydrolases | Aspartate/ornithine carbamoyltransferase | 1 | 1 |  |
| PLP-dependent transferases | MOSC N-terminal domain-like | 1 | 1 |  |
| Rudiment single hybrid motif | PurM C-terminal domain-like | 1 | 1 |  |
| RNA-binding domain, RBD | Clavaminate synthase-like | 1 | 1 |  |
| Tropomyosin | Prefoldin | 1 | 1 |  |
| Cobalamin (vitamin B12)-dependent enzymes | Cobalamin (vitamin B12)-binding domain | 1 | 1 |  |
| 2Fe-2S ferredoxin-like | Formate dehydrogenase/DMSO reductase, domains 1-3 | 1 | 1 |  |
| Chaperone J-domain | Sec63 N-terminal domain-like | 1 | 1 |  |
| Cap-Gly domain | Cysteine proteinases | 1 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | Domain of poly(ADP-ribose) polymerase | 1 | 1 |  |
| Single hybrid motif | BRCT domain | 1 | 1 |  |
| Nitrous oxide reductase, N-terminal domain | Soluble quinoprotein glucose dehydrogenase | 1 | 1 |  |
| Lipocalins | BPTI-like | 1 | 1 |  |
| beta-beta-alpha zinc fingers | PAP/OAS1 substrate-binding domain | 1 | 1 |  |
| SAM/Pointed domain | Retrovirus zinc finger-like domains | 1 | 1 |  |
| Ubiquitin-like | EPT/RTPC-like | 1 | 1 |  |
| PDZ domain-like | Formin homology 2 domain (FH2 domain) | 1 | 1 |  |
| Thyroglobulin type-1 domain | alpha/beta-Hydrolases | 1 | 1 |  |
| ISP domain | Metallo-hydrolase/oxidoreductase | 1 | 1 |  |
| Anthrax protective antigen | Pectin lyase-like | 1 | 1 |  |
| CCHHC domain | SAM/Pointed domain | 1 | 1 |  |
| Glutathione synthetase ATP-binding domain-like | PurM N-terminal domain-like | 1 | 1 |  |
| WD40 repeat-like | SAM/Pointed domain | 1 | 1 |  |
| PreATP-grasp domain | Aspartate/ornithine carbamoyltransferase | 1 | 1 |  |
| YWTD domain | Protein kinase-like (PK-like) | 1 | 1 |  |
| PUG domain-like | RING/U-box | 1 | 1 |  |
| F-box domain | Cyclin-like | 1 | 1 |  |
| "Winged helix" DNA-binding domain | Class II aaRS and biotin synthetases | 1 | 1 |  |
| ENTH/VHS domain | FYVE/PHD zinc finger | 1 | 1 |  |
| UBC-like | Ribosomal protein S5 domain 2-like | 1 | 1 |  |
| vWA-like | Cysteine-rich domain | 1 | 1 |  |
| SEA domain | Family A G protein-coupled receptor-like | 1 | 1 |  |
| Ankyrin repeat | Pseudo ankyrin repeat-like | 1 | 1 |  |
| Kazal-type serine protease inhibitors | Concanavalin A-like lectins/glucanases | 1 | 1 |  |
| ACP-like | alpha/beta-Hydrolases | 1 | 1 |  |
| Glutathione synthetase ATP-binding domain-like | Formyltransferase | 1 | 1 |  |
| Plexin repeat | Fibronectin type III | 1 | 1 |  |
| S-adenosyl-L-methionine-dependent methyltransferases | Putative methyltransferase TM0872, insert domain | 1 | 1 |  |
| Actin-like ATPase domain | AF1104-like | 1 | 1 |  |
| DAK1/DegV-like | DhaL-like | 1 | 1 |  |
| L domain-like | Calcium-dependent phosphotriesterase | 1 | 1 |  |
| SMAD/FHA domain | HAD-like | 1 | 1 |  |
| Class I glutamine amidotransferase-like | Aspartate/ornithine carbamoyltransferase | 1 | 1 |  |
| Methylglyoxal synthase-like | Composite domain of metallo-dependent hydrolases | 1 | 1 |  |
| Acetyl-CoA synthetase-like | ACP-like | 1 | 1 |  |
| YaeB-like | YaeB-like | 1 | 1 |  |
| UBA-like | DNase I-like | 1 | 1 |  |
| 4Fe-4S ferredoxins | Formate dehydrogenase/DMSO reductase, domains 1-3 | 1 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | ADP-ribosylation | 1 | 1 |  |
| FGAM synthase PurL, linker domain | Class I glutamine amidotransferase-like | 1 | 1 |  |
| Thioredoxin-like | FAD/NAD-linked reductases, dimerisation (C-terminal) domain | 1 | 1 |  |
| EGF/Laminin | YVTN repeat-like/Quinoprotein amine dehydrogenase | 1 | 1 |  |
| FMN-linked oxidoreductases | dsRNA-binding domain-like | 1 | 1 |  |
| GST C-terminal domain-like | eEF1-gamma domain | 1 | 1 |  |
| Carbon-nitrogen hydrolase | Adenine nucleotide alpha hydrolases-like | 1 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | VPS9 domain | 1 | 1 |  |
| Dipeptidyl peptidase I (cathepsin C), exclusion domain | Cysteine proteinases | 1 | 1 |  |
| Nucleotide-diphospho-sugar transferases | HAD-like | 1 | 1 |  |
| RCC1/BLIP-II | Cytochrome b5-like heme/steroid binding domain | 1 | 1 |  |
| Cobalamin (vitamin B12)-binding domain | Methionine synthase activation domain-like | 1 | 1 |  |
| EF-hand | FnI-like domain | 1 | 1 |  |
| L9 N-domain-like | Ribonuclease H-like | 1 | 1 |  |
| DNA clamp | DNA clamp | 1 | 1 |  |
| Methionine synthase domain | Methionine synthase activation domain-like | 1 | 1 |  |
| Growth factor receptor domain | Intermediate filament protein, coiled coil region | 1 | 1 |  |
| L domain-like | Lipase/lipooxygenase domain (PLAT/LH2 domain) | 1 | 1 |  |
| Soluble quinoprotein glucose dehydrogenase | SRCR-like | 1 | 1 |  |
| HSP20-like chaperones | ThrRS/AlaRS common domain | 1 | 1 |  |
| ARM repeat | FKBP12-rapamycin-binding domain of FKBP-rapamycin-associated protein (FRAP) | 1 | 1 |  |
| vWA-like | SAP domain | 1 | 1 |  |
| Ribonuclease H-like | Zinc finger domain of DNA polymerase-alpha | 1 | 1 |  |
| RuvA domain 2-like | SH2 domain | 1 | 1 |  |
| Inhibitor of apoptosis (IAP) repeat | UBC-like | 1 | 1 |  |
| Ras GEF | C2 domain (Calcium/lipid-binding domain, CaLB) | 1 | 1 |  |
| Carboxypeptidase regulatory domain-like | Immunoglobulin | 1 | 1 |  |
| Thiolase-like | ACP-like | 1 | 1 |  |
| Nqo1 FMN-binding domain-like | Nqo1C-terminal domain-like | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Prokaryotic type KH domain (KH-domain type II) | 1 | 1 |  |
| Cadherin-like | Protein kinase-like (PK-like) | 1 | 1 |  |
| N-terminal domain of MutM-like DNA repair proteins | Ran binding protein zinc finger-like | 1 | 1 |  |
| SPOC domain-like | C-terminal domain of Ku80 | 1 | 1 |  |
| Carbamate kinase-like | Acyl-CoA N-acyltransferases (Nat) | 1 | 1 |  |
| Frizzled cysteine-rich domain | Concanavalin A-like lectins/glucanases | 1 | 1 |  |
| Histone-fold | Histone-fold | 1 | 1 |  |
| PAP/OAS1 substrate-binding domain | Ubiquitin-like | 1 | 1 |  |
| PKD domain | LDL receptor-like module | 1 | 1 |  |
| Ankyrin repeat | BRCT domain | 1 | 1 |  |
| Cytochrome b5-like heme/steroid binding domain | Mib/herc2 domain-like | 1 | 1 |  |
| Voltage-gated potassium channels | C2 domain (Calcium/lipid-binding domain, CaLB) | 1 | 1 |  |
| Thiolase-like | GroES-like | 1 | 1 |  |
| Ribosomal protein S5 domain 2-like | Polynucleotide phosphorylase/guanosine pentaphosphate synthase (PNPase/GPSI), domain 3 | 1 | 1 |  |
| Rudiment single hybrid motif | PurM N-terminal domain-like | 1 | 1 |  |
| Ribonuclease H-like | Nucleic acid-binding proteins | 1 | 1 |  |
| Homocysteine S-methyltransferase | Methionine synthase activation domain-like | 1 | 1 |  |
| RuvA domain 2-like | DNase I-like | 1 | 1 |  |
| Intermediate filament protein, coiled coil region | Myosin rod fragments | 1 | 1 |  |
| Growth factor receptor domain | Prefoldin | 1 | 1 |  |
| DEATH domain | HIN-2000 domain-like | 1 | 1 |  |
| S-adenosyl-L-methionine-dependent methyltransferases | Kelch motif | 1 | 1 |  |
| POZ domain | Leucine zipper domain | 1 | 1 |  |
| PLP-dependent transferases | PK beta-barrel domain-like | 1 | 1 |  |
| Retrovirus zinc finger-like domains | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 |  |
| Quinoprotein alcohol dehydrogenase-like | TolB, C-terminal domain | 1 | 1 |  |
| Concanavalin A-like lectins/glucanases | Hormone receptor domain | 1 | 1 |  |
| PH domain-like | RNI-like | 1 | 1 |  |
| Adenine nucleotide alpha hydrolases-like | GMP synthetase C-terminal dimerisation domain | 1 | 1 |  |
| HAD-like | Protein kinase-like (PK-like) | 1 | 1 |  |
| NHL repeat | Calcium-dependent phosphotriesterase | 1 | 1 |  |
| PurM N-terminal domain-like | Formyltransferase | 1 | 1 |  |
| SAP domain | Ribonuclease H-like | 1 | 1 |  |
| NAD(P)-binding Rossmann-fold domains | NagB/RpiA/CoA transferase-like | 1 | 1 |  |
| MFS general substrate transporter | alpha/beta knot | 1 | 1 |  |
| Probable ACP-binding domain of malonyl-CoA ACP transacylase | ACP-like | 1 | 1 |  |
| CCCH zinc finger | RNA-binding domain, RBD | 1 | 1 |  |
| RING/U-box | SH3-domain | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Glucocorticoid receptor-like (DNA-binding domain) | 1 | 1 |  |
| Glutathione synthetase ATP-binding domain-like | Metallo-dependent hydrolases | 1 | 1 |  |
| Ankyrin repeat | WD40 repeat-like | 1 | 1 |  |
| UBA-like | Elongation factor Ts (EF-Ts), dimerisation domain | 1 | 1 |  |
| Cadherin-like | Family A G protein-coupled receptor-like | 1 | 1 |  |
| Nucleotide-binding domain | FMN-linked oxidoreductases | 1 | 1 |  |
| NAD(P)-binding Rossmann-fold domains | alpha/beta-Hydrolases | 1 | 1 |  |
| Ankyrin repeat | Tropomyosin | 1 | 1 |  |
| vWA-like | C-terminal domain of Ku80 | 1 | 1 |  |
| RING/U-box | 3-carboxy-cis,cis-mucoante lactonizing enzyme | 1 | 1 |  |
| CCHHC domain | Acyl-CoA N-acyltransferases (Nat) | 1 | 1 |  |
| PRP4-like | WD40 repeat-like | 1 | 1 |  |
| BRCT domain | DNA/RNA polymerases | 1 | 1 |  |
| RNA-binding domain, RBD | Nucleotidyltransferase | 1 | 1 |  |
| Formin homology 2 domain (FH2 domain) | Protein kinase-like (PK-like) | 1 | 1 |  |
| Mitotic arrest deficient-like 1, Mad1 | Eferin C-derminal domain-like | 1 | 1 |  |
| SEA domain | Immunoglobulin | 1 | 1 |  |
| Telomeric repeat binding factor (TRF) dimerisation domain | Homeodomain-like | 1 | 1 |  |
| HMA, heavy metal-associated domain | Cu,Zn superoxide dismutase-like | 1 | 1 |  |
| HAD-like | BRCT domain | 1 | 1 |  |
| SGNH hydrolase | SGNH hydrolase | 1 | 1 |  |
| Concanavalin A-like lectins/glucanases | FYVE/PHD zinc finger | 1 | 1 |  |
| Ribonuclease H-like | RuvA domain 2-like | 1 | 1 |  |
| RCC1/BLIP-II | Tudor/PWWP/MBT | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | beta-beta-alpha zinc fingers | 1 | 1 |  |
| Protein kinase-like (PK-like) | Chaperone J-domain | 1 | 1 |  |
| HAD-like | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 |  |
| FabD/lysophospholipase-like | NAD(P)-binding Rossmann-fold domains | 1 | 1 |  |
| FYVE/PHD zinc finger | Hect, E3 ligase catalytic domain | 1 | 1 |  |
| GMP synthetase C-terminal dimerisation domain | GMP synthetase C-terminal dimerisation domain | 1 | 1 |  |
| SAM/Pointed domain | HD-domain/PDEase-like | 1 | 1 |  |
| Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain | Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain | 1 | 1 |  |
| SET domain | WW domain | 1 | 1 |  |
| t-snare proteins | t-snare proteins | 1 | 1 |  |
| POZ domain | Pentapeptide repeat-like | 1 | 1 |  |
| BSD domain-like | BSD domain-like | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Ran binding protein zinc finger-like | 1 | 1 |  |
| Thiolase-like | SCP-like | 1 | 1 |  |
| NHL repeat | 3-carboxy-cis,cis-mucoante lactonizing enzyme | 1 | 1 |  |
| Integrin beta tail domain | Fibronectin type III | 1 | 1 |  |
| Periplasmic binding protein-like II | Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain | 1 | 1 |  |
| TROVE domain-like | Soluble quinoprotein glucose dehydrogenase | 1 | 1 |  |
| EF-hand | WD40 repeat-like | 1 | 1 |  |
| TATA-box binding protein-like | DNA-glycosylase | 1 | 1 |  |
| Class I glutamine amidotransferase-like | GMP synthetase C-terminal dimerisation domain | 1 | 1 |  |
| Nucleotide-binding domain | FAD/NAD(P)-binding domain | 1 | 1 |  |
| WW domain | BAR/IMD domain-like | 1 | 1 |  |
| PX domain | CAD & PB1 domains | 1 | 1 |  |
| Polynucleotide phosphorylase/guanosine pentaphosphate synthase (PNPase/GPSI), domain 3 | Nucleic acid-binding proteins | 1 | 1 |  |
| PreATP-grasp domain | Metallo-dependent hydrolases | 1 | 1 |  |
| Ribonuclease PH domain 2-like | Nucleic acid-binding proteins | 1 | 1 |  |
| EGF/Laminin | CalX-like | 1 | 1 |  |
| Nucleotide-diphospho-sugar transferases | Nucleotide-diphospho-sugar transferases | 1 | 1 |  |
| Zinc hairpin stack | RING/U-box | 1 | 1 |  |
| FAD/NAD(P)-binding domain | Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain | 1 | 1 |  |
| B-box zinc-binding domain | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 |  |
| Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | S15/NS1 RNA-binding domain | 1 | 1 |  |
| Acyl-CoA binding protein | Ankyrin repeat | 1 | 1 |  |
| EF-hand | Ubiquitin-like | 1 | 1 |  |
| PurM N-terminal domain-like | PurM N-terminal domain-like | 1 | 1 |  |
| L domain-like | C-type lectin-like | 1 | 1 |  |
| Eukaryotic RPB5 N-terminal domain | RPB5-like RNA polymerase subunit | 1 | 1 |  |
| TSP-1 type 1 repeat | Family A G protein-coupled receptor-like | 1 | 1 |  |
| E set domains | (Trans)glycosidases | 1 | 1 |  |
| Seven-hairpin glycosidases | Seven-hairpin glycosidases | 1 | 1 |  |
| vWA-like | Sensory domain-like | 1 | 1 |  |
| UBC-like | NAD(P)-binding Rossmann-fold domains | 1 | 1 |  |
| RNI-like | Ubiquitin-like | 1 | 1 |  |
| Glutathione synthetase ATP-binding domain-like | Aspartate/ornithine carbamoyltransferase | 1 | 1 |  |
| Immunoglobulin | SRCR-like | 1 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | SH3-domain | 1 | 1 |  |
| Glutaminase/Asparaginase | Ankyrin repeat | 1 | 1 |  |
| Ankyrin repeat | L domain-like | 1 | 1 |  |
| POZ domain | A DNA-binding domain in eukaryotic transcription factors | 1 | 1 |  |
| Single hybrid motif | HAD-like | 1 | 1 |  |
| RCC1/BLIP-II | VPS9 domain | 1 | 1 |  |
| Elongation factor Ts (EF-Ts), dimerisation domain | Elongation factor Ts (EF-Ts), dimerisation domain | 1 | 1 |  |
| FnI-like domain | Trypsin-like serine proteases | 1 | 1 |  |
| VPS9 domain | Ankyrin repeat | 1 | 1 |  |
| Kazal-type serine protease inhibitors | SEA domain | 1 | 1 |  |
| alpha-helical ferredoxin | 4Fe-4S ferredoxins | 1 | 1 |  |
| Rab geranylgeranyltransferase alpha-subunit, insert domain | Outer arm dynein light chain 1 | 1 | 1 |  |
| alpha-helical ferredoxin | FMN-linked oxidoreductases | 1 | 1 |  |
| Periplasmic binding protein-like II | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 |  |
| ISP transmembrane anchor | ISP domain | 1 | 1 |  |
| Ankyrin repeat | RCC1/BLIP-II | 1 | 1 |  |
| Annexin | Annexin | 1 | 1 |  |
| Nicotinic receptor ligand binding domain-like | Nicotinic receptor ligand binding domain-like | 1 | 1 |  |
| Protein prenylyltransferase | Rab geranylgeranyltransferase alpha-subunit, insert domain | 1 | 1 |  |
| KRAB domain (Kruppel-associated box) | Ribonuclease H-like | 1 | 1 |  |
| Staphylococcal nuclease | Staphylococcal nuclease | 1 | 1 |  |
| S-adenosyl-L-methionine-dependent methyltransferases | alpha/beta-Hydrolases | 1 | 1 |  |
| Chaperone J-domain | RNA-binding domain, RBD | 1 | 1 |  |
| RCC1/BLIP-II | Concanavalin A-like lectins/glucanases | 1 | 1 |  |
| Homocysteine S-methyltransferase | Methionine synthase domain | 1 | 1 |  |
| PH domain-like | Ran binding protein zinc finger-like | 1 | 1 |  |
| MurD-like peptide ligases, catalytic domain | MurD-like peptide ligases, peptide-binding domain | 1 | 1 |  |
| TPR-like | RNA-binding domain, RBD | 1 | 1 |  |
| TROVE domain-like | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 |  |
| RmlC-like cupins | RmlC-like cupins | 1 | 1 |  |
| Ribosomal protein S5 domain 2-like | Ribosomal protein S5 domain 2-like | 1 | 1 |  |
| GST C-terminal domain-like | Methionyl-tRNA synthetase (MetRS), Zn-domain | 1 | 1 |  |
| beta-sandwich domain of Sec23/24 | ARM repeat | 1 | 1 |  |
| Cupredoxins | Pectin lyase-like | 1 | 1 |  |
| S-adenosyl-L-methionine-dependent methyltransferases | Metalloproteases ("zincins"), catalytic domain | 1 | 1 |  |
| Thioredoxin-like | FAD/NAD(P)-binding domain | 1 | 1 |  |
| Immunoglobulin | FnI-like domain | 1 | 1 |  |
| Thioredoxin-like | Galactose-binding domain-like | 1 | 1 |  |
| FKBP12-rapamycin-binding domain of FKBP-rapamycin-associated protein (FRAP) | Protein kinase-like (PK-like) | 1 | 1 |  |
| HSP20-like chaperones | Translation proteins | 1 | 1 |  |
| mRNA decapping enzyme DcpS N-terminal domain | HIT-like | 1 | 1 |  |
| Nqo1 FMN-binding domain-like | Nqo1 middle domain-like | 1 | 1 |  |
| UBA-like | Tudor/PWWP/MBT | 1 | 1 |  |
| PUG domain-like | Cysteine proteinases | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | DNA/RNA polymerases | 1 | 1 |  |
| Growth factor receptor domain | TSP type-3 repeat | 1 | 1 |  |
| Carbamoyl phosphate synthetase, small subunit N-terminal domain | Composite domain of metallo-dependent hydrolases | 1 | 1 |  |
| Purple acid phosphatase, N-terminal domain | Metallo-dependent phosphatases | 1 | 1 |  |
| Pseudouridine synthase | PUA domain-like | 1 | 1 |  |
| Dimerization-anchoring domain of cAMP-dependent PK regulatory subunit | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 |  |
| Soluble quinoprotein glucose dehydrogenase | Quinoprotein alcohol dehydrogenase-like | 1 | 1 |  |
| PurS-like | Class I glutamine amidotransferase-like | 1 | 1 |  |
| DNA/RNA polymerases | Zinc finger domain of DNA polymerase-alpha | 1 | 1 |  |
| Ypt/Rab-GAP domain of gyp1p | Rhodanese/Cell cycle control phosphatase | 1 | 1 |  |
| FGAM synthase PurL, linker domain | PurM N-terminal domain-like | 1 | 1 |  |
| RNA-binding domain, RBD | PAP/OAS1 substrate-binding domain | 1 | 1 |  |
| Frizzled cysteine-rich domain | SRCR-like | 1 | 1 |  |
| Thiolase-like | alpha/beta-Hydrolases | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Restriction endonuclease-like | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | E set domains | 1 | 1 |  |
| Macro domain-like | Zn-dependent exopeptidases | 1 | 1 |  |
| WW domain | NAD(P)-binding Rossmann-fold domains | 1 | 1 |  |
| N-terminal domain of MutM-like DNA repair proteins | Glucocorticoid receptor-like (DNA-binding domain) | 1 | 1 |  |
| Methylglyoxal synthase-like | Cytidine deaminase-like | 1 | 1 |  |
| NagB/RpiA/CoA transferase-like | RNA-binding domain, RBD | 1 | 1 |  |
| Periplasmic binding protein-like I | Periplasmic binding protein-like I | 1 | 1 |  |
| USP8 N-terminal domain-like | Cysteine proteinases | 1 | 1 |  |
| Leech antihemostatic proteins | Leech antihemostatic proteins | 1 | 1 |  |
| Methylated DNA-protein cysteine methyltransferase domain | Methylated DNA-protein cysteine methyltransferase, C-terminal domain | 1 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | beta-beta-alpha zinc fingers | 1 | 1 |  |
| Rudiment single hybrid motif | Formyltransferase | 1 | 1 |  |
| Tropomyosin | SAM/Pointed domain | 1 | 1 |  |
| Oxidoreductase molybdopterin-binding domain | E set domains | 1 | 1 |  |
| Nucleic acid-binding proteins | SH2 domain | 1 | 1 |  |
| RCC1/BLIP-II | Mib/herc2 domain-like | 1 | 1 |  |
| LCCL domain | Galactose-binding domain-like | 1 | 1 |  |
| Kazal-type serine protease inhibitors | LDL receptor-like module | 1 | 1 |  |
| Concanavalin A-like lectins/glucanases | C-type lectin-like | 1 | 1 |  |
| PreATP-grasp domain | PurM C-terminal domain-like | 1 | 1 |  |
| vWA-like | FnI-like domain | 1 | 1 |  |
| Class I glutamine amidotransferase-like | Metallo-dependent hydrolases | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | HRDC-like | 1 | 1 |  |
| Kringle-like | SRCR-like | 1 | 1 |  |
| Tetrahydrobiopterin biosynthesis enzymes-like | Tetrahydrobiopterin biosynthesis enzymes-like | 1 | 1 |  |
| Tudor/PWWP/MBT | Protein kinase-like (PK-like) | 1 | 1 |  |
| Actin depolymerizing proteins | SH3-domain | 1 | 1 |  |
| Radical SAM enzymes | Molybdenum cofactor biosynthesis protein C, MoaC | 1 | 1 |  |
| Cadherin-like | Hormone receptor domain | 1 | 1 |  |
| EGF/Laminin | TNF-like | 1 | 1 |  |
| WD40 repeat-like | Hect, E3 ligase catalytic domain | 1 | 1 |  |
| Thioredoxin-like | eEF1-gamma domain | 1 | 1 |  |
| DNA repair protein MutS, domain I | DNA repair protein MutS, domain II | 1 | 1 |  |
| Nicotinate/Quinolinate PRTase N-terminal domain-like | Nicotinate/Quinolinate PRTase C-terminal domain-like | 1 | 1 |  |
| DEATH domain | WD40 repeat-like | 1 | 1 |  |
| Serine protease inhibitors | EGF/Laminin | 1 | 1 |  |
| FYSH domain | Hypothetical protein AF0491, middle domain | 1 | 1 |  |
| Doublecortin (DC) | Pentapeptide repeat-like | 1 | 1 |  |
| Acetyl-CoA synthetase-like | Quinoprotein alcohol dehydrogenase-like | 1 | 1 |  |
| Calcium-dependent phosphotriesterase | Quinoprotein alcohol dehydrogenase-like | 1 | 1 |  |
| PIN domain-like | Nucleic acid-binding proteins | 1 | 1 |  |
| Carboxypeptidase regulatory domain-like | 3-carboxy-cis,cis-mucoante lactonizing enzyme | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Soluble quinoprotein glucose dehydrogenase | 1 | 1 |  |
| Probable ACP-binding domain of malonyl-CoA ACP transacylase | alpha/beta-Hydrolases | 1 | 1 |  |
| Ribonuclease PH domain 2-like | Ribonuclease PH domain 2-like | 1 | 1 |  |
| Elafin-like | SEA domain | 1 | 1 |  |
| DBL homology domain (DH-domain) | Fibronectin type III | 1 | 1 |  |
| Rudiment single hybrid motif | Aldolase | 1 | 1 |  |
| Mitochondrial carrier | Mitochondrial carrier | 1 | 1 |  |
| DEATH domain | B-box zinc-binding domain | 1 | 1 |  |
| Molybdenum cofactor biosynthesis proteins | Adenine nucleotide alpha hydrolases-like | 1 | 1 |  |
| SNARE-like | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 |  |
| Immunoglobulin | Heme-dependent peroxidases | 1 | 1 |  |
| Dom34/Pelota N-terminal domain-like | Translational machinery components | 1 | 1 |  |
| RAP domain-like | RAP domain-like | 1 | 1 |  |
| F-box domain | L domain-like | 1 | 1 |  |
| Spermadhesin, CUB domain | Galactose oxidase, central domain | 1 | 1 |  |
| RCC1/BLIP-II | WD40 repeat-like | 1 | 1 |  |
| Thiolase-like | Probable ACP-binding domain of malonyl-CoA ACP transacylase | 1 | 1 |  |
| Hypothetical protein SAV1430 | Fe-S cluster assembly (FSCA) domain-like | 1 | 1 |  |
| dsRNA-binding domain-like | R3H domain | 1 | 1 |  |
| Ran binding protein zinc finger-like | Cysteine proteinases | 1 | 1 |  |
| UBA-like | NSFL1 (p97 ATPase) cofactor p47, SEP domain | 1 | 1 |  |
| Cytochrome b5-like heme/steroid binding domain | Hect, E3 ligase catalytic domain | 1 | 1 |  |
| PUA domain-like | eIF1-like | 1 | 1 |  |
| p53-like transcription factors | p53-like transcription factors | 1 | 1 |  |
| GTPase activation domain, GAP | GTPase activation domain, GAP | 1 | 1 |  |
| Eukaryotic type KH-domain (KH-domain type I) | SAM/Pointed domain | 1 | 1 |  |
| F-box domain | Kelch motif | 1 | 1 |  |
| Staphylococcal nuclease | Protein kinase-like (PK-like) | 1 | 1 |  |
| Nucleotide-diphospho-sugar transferases | ARM repeat | 1 | 1 |  |
| Adenine nucleotide alpha hydrolases-like | Argininosuccinate synthetase, C-terminal domain | 1 | 1 |  |
| Ribokinase-like | Ribokinase-like | 1 | 1 |  |
| Cysteine-rich domain | (Phosphotyrosine protein) phosphatases II | 1 | 1 |  |
| Nucleotidylyl transferase | Alpha-L RNA-binding motif | 1 | 1 |  |
| TPR-like | PH domain-like | 1 | 1 |  |
| Mib/herc2 domain-like | Tudor/PWWP/MBT | 1 | 1 |  |
| Activator of Hsp90 ATPase, Aha1 | Bet v1-like | 1 | 1 |  |
| Ribonuclease H-like | "Winged helix" DNA-binding domain | 1 | 1 |  |
| PreATP-grasp domain | Composite domain of metallo-dependent hydrolases | 1 | 1 |  |
| Serine protease inhibitors | vWA-like | 1 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | Putative DNA-binding domain | 1 | 1 |  |
| vWA-like | CalX-like | 1 | 1 |  |
| L domain-like | RING/U-box | 1 | 1 |  |
| Methylglyoxal synthase-like | Aspartate/ornithine carbamoyltransferase | 1 | 1 |  |
| PUA domain-like | S-adenosyl-L-methionine-dependent methyltransferases | 1 | 1 |  |
| AF1104-like | AF1104-like | 1 | 1 |  |
| GLA-domain | Kringle-like | 1 | 1 |  |
| EF-hand | Myosin rod fragments | 1 | 1 |  |
| Ankyrin repeat | Oxysterol-binding protein-like | 1 | 1 |  |
| Dom34/Pelota N-terminal domain-like | L30e-like | 1 | 1 |  |
| C2 domain (Calcium/lipid-binding domain, CaLB) | UBA-like | 1 | 1 |  |
| PreATP-grasp domain | Formyltransferase | 1 | 1 |  |
| Growth factor receptor domain | Hormone receptor domain | 1 | 1 |  |
| DEATH domain | Toll/Interleukin receptor TIR domain | 1 | 1 |  |
| Frizzled cysteine-rich domain | C-type lectin-like | 1 | 1 |  |
| RNI-like | Immunoglobulin | 1 | 1 |  |
| Protein kinase-like (PK-like) | Ypt/Rab-GAP domain of gyp1p | 1 | 1 |  |
| EF-hand | Immunoglobulin | 1 | 1 |  |
| TPR-like | Ran binding protein zinc finger-like | 1 | 1 |  |
| SEA domain | SRCR-like | 1 | 1 |  |
| RING/U-box | Formin homology 2 domain (FH2 domain) | 1 | 1 |  |
| EPT/RTPC-like | RNA 3'-terminal phosphate cyclase, RPTC, insert domain | 1 | 1 |  |
| Chaperone J-domain | HSC20 (HSCB), C-terminal oligomerisation domain | 1 | 1 |  |
| RCC1/BLIP-II | Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain | 1 | 1 |  |
| Domain of the SRP/SRP receptor G-proteins | Signal peptide-binding domain | 1 | 1 |  |
| Tudor/PWWP/MBT | 6-phosphogluconate dehydrogenase C-terminal domain-like | 1 | 1 |  |
| Anthrax protective antigen | Cupredoxins | 1 | 1 |  |
| Protease propeptides/inhibitors | Growth factor receptor domain | 1 | 1 |  |
| dsRNA-binding domain-like | Protein kinase-like (PK-like) | 1 | 1 |  |
| Non-globular alpha+beta subunits of globular proteins | ISP transmembrane anchor | 1 | 1 |  |
| WW domain | dsRNA-binding domain-like | 1 | 1 |  |
| PLC-like phosphodiesterases | Ubiquitin-like | 1 | 1 |  |
| TRADD, N-terminal domain | DEATH domain | 1 | 1 |  |
| ARM repeat | beta-beta-alpha zinc fingers | 1 | 1 |  |
| Tricorn protease domain 2 | TPR-like | 1 | 1 |  |
| ARM repeat | alpha/beta-Hydrolases | 1 | 1 |  |
| Ubiquitin-like | BAG domain | 1 | 1 |  |
| NAD(P)-binding Rossmann-fold domains | Thioesterase/thiol ester dehydrase-isomerase | 1 | 1 |  |
| Kringle-like | HCP-like | 1 | 1 |  |
| SWIB/MDM2 domain | SWIB/MDM2 domain | 1 | 1 |  |
| Tex N-terminal region-like | SH2 domain | 1 | 1 |  |
| Starch-binding domain-like | Carboxypeptidase regulatory domain-like | 1 | 1 |  |
| Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain | Succinate dehydrogenase/fumarate reductase flavoprotein C-terminal domain | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Rad50 coiled-coil Zn hook | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | AN1-like Zinc finger | 1 | 1 |  |
| ARM repeat | HMA, heavy metal-associated domain | 1 | 1 |  |
| Somatomedin B domain | EndoU-like | 1 | 1 |  |
| RING/U-box | NRDP1 C-terminal domain-like | 1 | 1 |  |
| Thiamin pyrophosphokinase, catalytic domain | Thiamin pyrophosphokinase, substrate-binding domain | 1 | 1 |  |
| alpha/beta knot | Nucleic acid-binding proteins | 1 | 1 |  |
| Terpenoid cyclases/Protein prenyltransferases | Terpenoid cyclases/Protein prenyltransferases | 1 | 1 |  |
| Glutathione synthetase ATP-binding domain-like | Composite domain of metallo-dependent hydrolases | 1 | 1 |  |
| Prokaryotic type I DNA topoisomerase | Zinc beta-ribbon | 1 | 1 |  |
| Nucleotidylyl transferase | An anticodon-binding domain of class I aminoacyl-tRNA synthetases | 1 | 1 |  |
| FnI-like domain | Leech antihemostatic proteins | 1 | 1 |  |
| Zinc beta-ribbon | Zinc beta-ribbon | 1 | 1 |  |
| Apolipoprotein A-I | Apolipoprotein A-I | 1 | 1 |  |
| PUG domain-like | Galactose-binding domain-like | 1 | 1 |  |
| DNA repair protein MutS, domain II | DNA repair protein MutS, domain III | 1 | 1 |  |
| Cap-Gly domain | RNI-like | 1 | 1 |  |
| Putative DNA-binding domain | PheT/TilS domain | 1 | 1 |  |
| Class II aaRS and biotin synthetases | Anticodon-binding domain of PheRS | 1 | 1 |  |
| SNARE-like | Domain of the SRP/SRP receptor G-proteins | 1 | 1 |  |
| Kazal-type serine protease inhibitors | FnI-like domain | 1 | 1 |  |
| RUN domain-like | Supernatant protein factor (SPF), C-terminal domain | 1 | 1 |  |
| R3H domain | Ribonuclease H-like | 1 | 1 |  |
| SEA domain | Fibronectin type III | 1 | 1 |  |
| Class II aaRS and biotin synthetases | GAD domain-like | 1 | 1 |  |
| Ankyrin repeat | Heat shock protein 70kD (HSP70), C-terminal subdomain | 1 | 1 |  |
| CHY zinc finger-like | RING/U-box | 1 | 1 |  |
| ISP domain | FAD/NAD-linked reductases, dimerisation (C-terminal) domain | 1 | 1 |  |
| GST C-terminal domain-like | ValRS/IleRS/LeuRS editing domain | 1 | 1 |  |
| Succinyl-CoA synthetase domains | Citrate synthase | 1 | 1 |  |
| GST C-terminal domain-like | eEF-1beta-like | 1 | 1 |  |
| Carbamoyl phosphate synthetase, small subunit N-terminal domain | Aspartate/ornithine carbamoyltransferase | 1 | 1 |  |
| Homeodomain-like | JAB1/MPN domain | 1 | 1 |  |
| EGF/Laminin | 3-carboxy-cis,cis-mucoante lactonizing enzyme | 1 | 1 |  |
| Ran binding protein zinc finger-like | Cyclophilin-like | 1 | 1 |  |
| N-terminal nucleophile aminohydrolases (Ntn hydrolases) | PRTase-like | 1 | 1 |  |
| Tricorn protease domain 2 | ARM repeat | 1 | 1 |  |
| WD40 repeat-like | HMG-box | 1 | 1 |  |
| PDZ domain-like | EF-hand | 1 | 1 |  |
| WD40 repeat-like | Cyclophilin-like | 1 | 1 |  |
| Tex N-terminal region-like | Ribonuclease H-like | 1 | 1 |  |
| Protein kinase-like (PK-like) | BEACH domain | 1 | 1 |  |
| Pentapeptide repeat-like | RNA-binding domain, RBD | 1 | 1 |  |
| Cytochrome b5-like heme/steroid binding domain | E set domains | 1 | 1 |  |
| Tryptophan synthase beta subunit-like PLP-dependent enzymes | CBS-domain pair | 1 | 1 |  |
| ISP domain | FAD/NAD(P)-binding domain | 1 | 1 |  |
| PreATP-grasp domain | PurM N-terminal domain-like | 1 | 1 |  |
| Nucleotidyltransferase | Ubiquitin-like | 1 | 1 |  |
| TROVE domain-like | WD40 repeat-like | 1 | 1 |  |
| C-type lectin-like | Lipase/lipooxygenase domain (PLAT/LH2 domain) | 1 | 1 |  |
| Terpenoid synthases | SH3-domain | 1 | 1 |  |
| Sec63 N-terminal domain-like | Sec63 N-terminal domain-like | 1 | 1 |  |
| Nitrous oxide reductase, N-terminal domain | Galactose oxidase, central domain | 1 | 1 |  |
| TRAF domain-like | NRDP1 C-terminal domain-like | 1 | 1 |  |
| Galactose oxidase, central domain | Galactose oxidase, central domain | 1 | 1 |  |
| Homocysteine S-methyltransferase | Cobalamin (vitamin B12)-binding domain | 1 | 1 |  |
| Cysteine proteinases | Galactose-binding domain-like | 1 | 1 |  |
| L domain-like | Putative isomerase YbhE | 1 | 1 |  |
| L domain-like | SAM/Pointed domain | 1 | 1 |  |
| PLP-dependent transferases | PLP-dependent transferases | 1 | 1 |  |
| Transmembrane di-heme cytochromes | a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 1 | 1 |  |
| Tex N-terminal region-like | Nucleic acid-binding proteins | 1 | 1 |  |
| PX domain | SAM/Pointed domain | 1 | 1 |  |
| Heme-dependent peroxidases | FnI-like domain | 1 | 1 |  |
| PurM C-terminal domain-like | Class I glutamine amidotransferase-like | 1 | 1 |  |
| alpha-helical ferredoxin | Nucleotide-binding domain | 1 | 1 |  |
| RING/U-box | Prefoldin | 1 | 1 |  |
| HAD-like | Acyl-CoA dehydrogenase C-terminal domain-like | 1 | 1 |  |
| Rap30/74 interaction domains | Rap30/74 interaction domains | 1 | 1 |  |
| Nucleotidylyl transferase | SH2 domain | 1 | 1 |  |
| Spermadhesin, CUB domain | Family A G protein-coupled receptor-like | 1 | 1 |  |
| Sec63 N-terminal domain-like | Ribonuclease H-like | 1 | 1 |  |
| Doublecortin (DC) | POZ domain | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Chaperone J-domain | 1 | 1 |  |
| LDL receptor-like module | Immunoglobulin | 1 | 1 |  |
| CRAL/TRIO N-terminal domain | (Phosphotyrosine protein) phosphatases II | 1 | 1 |  |
| R3H domain | AN1-like Zinc finger | 1 | 1 |  |
| FabD/lysophospholipase-like | S-adenosyl-L-methionine-dependent methyltransferases | 1 | 1 |  |
| Glycosyl hydrolase domain | Fibronectin type III | 1 | 1 |  |
| Formate/glycerate dehydrogenase catalytic domain-like | Serine metabolism enzymes domain | 1 | 1 |  |
| ARM repeat | alpha/beta knot | 1 | 1 |  |
| Arp2/3 complex subunits | Arp2/3 complex subunits | 1 | 1 |  |
| CalX-like | Fibronectin type III | 1 | 1 |  |
| Tudor/PWWP/MBT | Hect, E3 ligase catalytic domain | 1 | 1 |  |
| PYP-like sensor domain (PAS domain) | Protein kinase-like (PK-like) | 1 | 1 |  |
| "Winged helix" DNA-binding domain | Protein kinase-like (PK-like) | 1 | 1 |  |
| L domain-like | Heme-dependent peroxidases | 1 | 1 |  |
| FnI-like domain | Fibronectin type III | 1 | 1 |  |
| PDZ domain-like | Cysteine-rich domain | 1 | 1 |  |
| CalX-like | C-type lectin-like | 1 | 1 |  |
| Homeodomain-like | Formin homology 2 domain (FH2 domain) | 1 | 1 |  |
| Protein kinase-like (PK-like) | HCP-like | 1 | 1 |  |
| L domain-like | Polo-box domain | 1 | 1 |  |
| Cytochrome b5-like heme/steroid binding domain | Oxidoreductase molybdopterin-binding domain | 1 | 1 |  |
| Protein prenylyltransferase | Outer arm dynein light chain 1 | 1 | 1 |  |
| ARM repeat | SAM/Pointed domain | 1 | 1 |  |
| Ribosomal protein S5 domain 2-like | Nucleic acid-binding proteins | 1 | 1 |  |
| Protein kinase-like (PK-like) | (Phosphotyrosine protein) phosphatases II | 1 | 1 |  |
| S-adenosyl-L-methionine-dependent methyltransferases | GroES-like | 1 | 1 |  |
| S-adenosyl-L-methionine-dependent methyltransferases | CCCH zinc finger | 1 | 1 |  |
| YccV-like | ApaG-like | 1 | 1 |  |
| E set domains | Glycosyl hydrolase domain | 1 | 1 |  |
| MIT domain | Calpain large subunit, middle domain (domain III) | 1 | 1 |  |
| Galactose-binding domain-like | TIMP-like | 1 | 1 |  |
| Arginase/deacetylase | RING/U-box | 1 | 1 |  |
| PurS-like | PurM C-terminal domain-like | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Hypothetical protein YjiA, C-terminal domain | 1 | 1 |  |
| FabD/lysophospholipase-like | GroES-like | 1 | 1 |  |
| beta-beta-alpha zinc fingers | Nucleotidyltransferase | 1 | 1 |  |
| SWIB/MDM2 domain | RING/U-box | 1 | 1 |  |
| Dihydropteroate synthetase-like | Methionine synthase domain | 1 | 1 |  |
| R3H domain | Ankyrin repeat | 1 | 1 |  |
| HIT/MYND zinc finger-like | SET domain | 1 | 1 |  |
| CAD & PB1 domains | C-terminal domain of DFF45/ICAD (DFF-C domain) | 1 | 1 |  |
| PABC (PABP) domain | Hect, E3 ligase catalytic domain | 1 | 1 |  |
| Aldolase | AFP III-like domain | 1 | 1 |  |
| Cytochrome b5-like heme/steroid binding domain | Tudor/PWWP/MBT | 1 | 1 |  |
| SAICAR synthase-like | N5-CAIR mutase (phosphoribosylaminoimidazole carboxylase, PurE) | 1 | 1 |  |
| Formate/glycerate dehydrogenase catalytic domain-like | DHS-like NAD/FAD-binding domain | 1 | 1 |  |
| BEACH domain | FYVE/PHD zinc finger | 1 | 1 |  |
| Thioredoxin-like | ERP29 C domain-like | 1 | 1 |  |
| SMAD/FHA domain | RING/U-box | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | RGC domain-like | 1 | 1 |  |
| Trimeric LpxA-like enzymes | ARM repeat | 1 | 1 |  |
| Formate/glycerate dehydrogenase catalytic domain-like | Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain | 1 | 1 |  |
| DUSP-like | EPT/RTPC-like | 1 | 1 |  |
| EGF/Laminin | Family A G protein-coupled receptor-like | 1 | 1 |  |
| FLJ32549 domain-like | FLJ32549 C-terminal domain-like | 1 | 1 |  |
| ARM repeat | Mib/herc2 domain-like | 1 | 1 |  |
| THUMP domain-like | S-adenosyl-L-methionine-dependent methyltransferases | 1 | 1 |  |
| BAR/IMD domain-like | HR1 repeat | 1 | 1 |  |
| TSP-1 type 1 repeat | BPTI-like | 1 | 1 |  |
| Amidase signature (AS) enzymes | Amidase signature (AS) enzymes | 1 | 1 |  |
| SAM/Pointed domain | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 |  |
| Thioredoxin-like | Six-hairpin glycosidases | 1 | 1 |  |
| SMAD/FHA domain | Protein kinase-like (PK-like) | 1 | 1 |  |
| SMAD/FHA domain | HIT-like | 1 | 1 |  |
| Tudor/PWWP/MBT | DNA repair protein MutS, domain III | 1 | 1 |  |
| TPR-like | Fic-like | 1 | 1 |  |
| Prokaryotic type KH domain (KH-domain type II) | Ribosomal protein S3 C-terminal domain | 1 | 1 |  |
| RING/U-box | Cyclophilin-like | 1 | 1 |  |
| GTPase activation domain, GAP | VPS9 domain | 1 | 1 |  |
| P-loop containing nucleoside triphosphate hydrolases | Tricorn protease domain 2 | 1 | 1 |  |
| Carbamoyl phosphate synthetase, large subunit connection domain | Aspartate/ornithine carbamoyltransferase | 1 | 1 |  |
| USP8 N-terminal domain-like | Rhodanese/Cell cycle control phosphatase | 1 | 1 |  |
| 2Fe-2S ferredoxin-like | 4Fe-4S ferredoxins | 1 | 1 |  |
| Glutamine synthetase/guanido kinase | Glutamine synthetase/guanido kinase | 1 | 1 |  |
| F-box domain | DBL homology domain (DH-domain) | 1 | 1 |  |
| Tudor/PWWP/MBT | DNA repair protein MutS, domain I | 1 | 1 |  |
| Probable ACP-binding domain of malonyl-CoA ACP transacylase | NAD(P)-binding Rossmann-fold domains | 1 | 1 |  |
| Nucleotide-diphospho-sugar transferases | Trimeric LpxA-like enzymes | 1 | 1 |  |
| Frizzled cysteine-rich domain | Trypsin-like serine proteases | 1 | 1 |  |
| Kazal-type serine protease inhibitors | SRCR-like | 1 | 1 |  |
| NAD(P)-binding Rossmann-fold domains | ACP-like | 1 | 1 |  |
| Ubiquitin-like | NAD kinase/diacylglycerol kinase-like | 1 | 1 |  |
| BPTI-like | LDL receptor-like module | 1 | 1 |  |
| Concanavalin A-like lectins/glucanases | Hect, E3 ligase catalytic domain | 1 | 1 |  |
| Thiolase-like | S-adenosyl-L-methionine-dependent methyltransferases | 1 | 1 |  |
| Hemopexin-like domain | Hemopexin-like domain | 1 | 1 |  |
| Starch-binding domain-like | (Phosphotyrosine protein) phosphatases II | 1 | 1 |  |
| beta-Galactosidase/glucuronidase domain | beta-Galactosidase/glucuronidase domain | 1 | 1 |  |
| Epsilon subunit of F1F0-ATP synthase N-terminal domain | Epsilon subunit of F1F0-ATP synthase C-terminal domain | 1 | 1 |  |
| Starch-binding domain-like | PLC-like phosphodiesterases | 1 | 1 |  |
| Methionyl-tRNA synthetase (MetRS), Zn-domain | Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | 1 | 1 |  |
| FYVE/PHD zinc finger | EF-hand | 1 | 1 |  |
| BRCT domain | Lesion bypass DNA polymerase (Y-family), little finger domain | 1 | 1 |  |
| UBC-like | LDH C-terminal domain-like | 1 | 1 |  |
| CRAL/TRIO domain | (Phosphotyrosine protein) phosphatases II | 1 | 1 |  |
| Cytochrome b5-like heme/steroid binding domain | Galactose-binding domain-like | 1 | 1 |  |
| PreATP-grasp domain | Aldolase | 1 | 1 |  |
| Somatomedin B domain | TSP-1 type 1 repeat | 1 | 1 |  |
| WD40 repeat-like | Tubby C-terminal domain-like | 1 | 1 |  |
| PurS-like | PurM N-terminal domain-like | 1 | 1 |  |
| HLH, helix-loop-helix DNA-binding domain | Positive stranded ssRNA viruses | 1 | 1 |  |
| ACP-like | Quinoprotein alcohol dehydrogenase-like | 1 | 1 |  |
| PH domain-like | Fibronectin type III | 1 | 1 |  |
| Pre-PUA domain | PUA domain-like | 1 | 1 |  |
| Concanavalin A-like lectins/glucanases | Serine protease inhibitors | 1 | 1 |  |
| Glucocorticoid receptor-like (DNA-binding domain) | Lipocalins | 1 | 1 |  |
| RCC1/BLIP-II | DBL homology domain (DH-domain) | 1 | 1 |  |
| TRAF domain-like | Cysteine proteinases | 1 | 1 |  |
| MIT domain | Cysteine proteinases | 1 | 1 |  |
| DNA-glycosylase | Nudix | 1 | 1 |  |
| "Winged helix" DNA-binding domain | E set domains | 1 | 1 |  |
| Class I glutamine amidotransferase-like | Composite domain of metallo-dependent hydrolases | 1 | 1 |  |
| Nqo1 middle domain-like | Nqo1C-terminal domain-like | 1 | 1 |  |
| Glutathione synthetase ATP-binding domain-like | Aldolase | 1 | 1 |  |
| PUG domain-like | Ubiquitin-like | 1 | 1 |  |
| L domain-like | Tropomyosin | 1 | 1 |  |
| Nucleotidyltransferase | Poly A polymerase C-terminal region-like | 1 | 1 |  |
| PheT/TilS domain | Class II aaRS and biotin synthetases | 1 | 1 |  |
| Composite domain of metallo-dependent hydrolases | Aspartate/ornithine carbamoyltransferase | 1 | 1 |  |
| "Winged helix" DNA-binding domain | HRDC-like | 1 | 1 |  |
| vWA-like | Immunoglobulin | 1 | 1 |  |
| Probable ACP-binding domain of malonyl-CoA ACP transacylase | S-adenosyl-L-methionine-dependent methyltransferases | 1 | 1 |  |
| E set domains | Pectin lyase-like | 1 | 1 |  |
| Glutathione synthetase ATP-binding domain-like | PurM C-terminal domain-like | 1 | 1 |  |
| Terpenoid synthases | RUN domain-like | 1 | 1 |  |
| NAD(P)-binding Rossmann-fold domains | SCP-like | 1 | 1 |  |
| NAD(P)-binding Rossmann-fold domains | DHS-like NAD/FAD-binding domain | 1 | 1 |  |
| Carbamate kinase-like | ALDH-like | 1 | 1 |  |
| Nucleotidylyl transferase | Nucleic acid-binding proteins | 1 | 1 |  |
| NHL repeat | Peptidase/esterase 'gauge' domain | 1 | 1 |  |
| Concanavalin A-like lectins/glucanases | SRCR-like | 1 | 1 |  |
| PurM N-terminal domain-like | Class I glutamine amidotransferase-like | 1 | 1 |  |
| FGAM synthase PurL, linker domain | PurM C-terminal domain-like | 1 | 1 |  |
| Kringle-like | Fibronectin type III | 1 | 1 |  |
| CHY zinc finger-like | Zinc hairpin stack | 1 | 1 |  |
| Aminopeptidase/glucanase lid domain | Zn-dependent exopeptidases | 1 | 1 |  |
| Integrin beta tail domain | CalX-like | 1 | 1 |  |