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 | |
|---|
| NAD(P)-binding Rossmann-fold domains | Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain | 217 | 1 |  |
| HMG-box | HMG-box | 67 | 3 | |
| Actin-like ATPase domain | Actin-like ATPase domain | 62 | 5 | |
| dsRNA-binding domain-like | Ribosomal protein S5 domain 2-like | 59 | 2 | |
| Ribosomal protein L6 | Ribosomal protein L6 | 57 | 1 | |
| RNA-binding domain, RBD | RNA-binding domain, RBD | 49 | 8 | |
| TRAF domain-like | POZ domain | 49 | 2 | |
| Actin-like ATPase domain | Heat shock protein 70kD (HSP70), peptide-binding domain | 39 | 5 | |
| Actin-like ATPase domain | Heat shock protein 70kD (HSP70), C-terminal subdomain | 35 | 2 | |
| Heat shock protein 70kD (HSP70), peptide-binding domain | Heat shock protein 70kD (HSP70), C-terminal subdomain | 35 | 2 | |
| Tubulin nucleotide-binding domain-like | Tubulin C-terminal domain-like | 34 | 1 | |
| GroEL equatorial domain-like | GroEL-intermediate domain like | 27 | 4 | |
| GroEL-intermediate domain like | GroEL apical domain-like | 26 | 3 | |
| Ribosomal protein S5 domain 2-like | HSP90 C-terminal domain | 26 | 6 | |
| beta-beta-alpha zinc fingers | beta-beta-alpha zinc fingers | 26 | 18 | |
| GroEL equatorial domain-like | GroEL apical domain-like | 26 | 3 | |
| ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | Ribosomal protein S5 domain 2-like | 24 | 5 | |
| Ubiquitin-like | Zn-binding ribosomal proteins | 22 | 1 | |
| ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase | HSP90 C-terminal domain | 19 | 3 | |
| P-loop containing nucleoside triphosphate hydrolases | Translation proteins | 17 | 3 | |
| P-loop containing nucleoside triphosphate hydrolases | P-loop containing nucleoside triphosphate hydrolases | 17 | 4 | |
| EF-hand | EF-hand | 14 | 2 | |
| Homeodomain-like | Homeodomain-like | 13 | 1 | |
| Translation proteins | EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain | 13 | 2 | |
| Formate/glycerate dehydrogenase catalytic domain-like | NAD(P)-binding Rossmann-fold domains | 12 | 1 | |
| P-loop containing nucleoside triphosphate hydrolases | EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain | 12 | 1 | |
| PLP-binding barrel | Alanine racemase C-terminal domain-like | 11 | 2 | |
| Thioredoxin-like | GST C-terminal domain-like | 11 | 1 | |
| P-loop containing nucleoside triphosphate hydrolases | RNA-binding domain, RBD | 11 | 4 | |
| Cadherin-like | Cadherin-like | 11 | 4 | |
| NAD(P)-binding Rossmann-fold domains | LDH C-terminal domain-like | 9 | 1 | |
| Cyclophilin-like | TPR-like | 9 | 1 | |
| Glucocorticoid receptor-like (DNA-binding domain) | Glucocorticoid receptor-like (DNA-binding domain) | 8 | 6 | |
| Immunoglobulin | Immunoglobulin | 7 | 6 | |
| Retrovirus capsid dimerization domain-like | beta-beta-alpha zinc fingers | 6 | 2 | |
| Chromo domain-like | Chromo domain-like | 6 | 1 | |
| SAICAR synthase-like | N5-CAIR mutase (phosphoribosylaminoimidazole carboxylase, PurE) | 6 | 1 | |
| Enolase N-terminal domain-like | Enolase C-terminal domain-like | 6 | 1 | |
| Phosphoenolpyruvate/pyruvate domain | PK C-terminal domain-like | 6 | 1 | |
| PK beta-barrel domain-like | PK C-terminal domain-like | 6 | 1 | |
| MHC antigen-recognition domain | Immunoglobulin | 6 | 1 | |
| HSP40/DnaJ peptide-binding domain | HSP40/DnaJ peptide-binding domain | 6 | 3 | |
| PK beta-barrel domain-like | Phosphoenolpyruvate/pyruvate domain | 6 | 1 | |
| Prokaryotic type KH domain (KH-domain type II) | Ribosomal protein S3 C-terminal domain | 6 | 2 | |
| Ribosomal L11/L12e N-terminal domain | Ribosomal protein L11, C-terminal domain | 6 | 1 | |
| GroES-like | NAD(P)-binding Rossmann-fold domains | 6 | 1 | |
| DnaJ/Hsp40 cysteine-rich domain | HSP40/DnaJ peptide-binding domain | 5 | 2 | |
| Nucleic acid-binding proteins | Translation proteins SH3-like domain | 5 | 2 | |
| P-loop containing nucleoside triphosphate hydrolases | EF-G C-terminal domain-like | 5 | 2 | |
| Chaperone J-domain | HSP40/DnaJ peptide-binding domain | 5 | 2 | |
| P-loop containing nucleoside triphosphate hydrolases | Ribosomal protein S5 domain 2-like | 5 | 2 | |
| Ribosomal protein S5 domain 2-like | EF-G C-terminal domain-like | 5 | 2 | |
| Actin depolymerizing proteins | Actin depolymerizing proteins | 5 | 3 | |
| Intermediate filament protein, coiled coil region | Intermediate filament protein, coiled coil region | 5 | 5 | |
| RNA-binding domain, RBD | Ran binding protein zinc finger-like | 5 | 2 | |
| Chaperone J-domain | DnaJ/Hsp40 cysteine-rich domain | 5 | 2 | |
| Translation proteins | EF-G C-terminal domain-like | 4 | 1 | |
| EF-G C-terminal domain-like | EF-G C-terminal domain-like | 4 | 1 | |
| Translation proteins | Ribosomal protein S5 domain 2-like | 4 | 1 | |
| N-terminal domain of alpha and beta subunits of F1 ATP synthase | P-loop containing nucleoside triphosphate hydrolases | 4 | 3 | |
| SRCR-like | SRCR-like | 4 | 4 | |
| POZ domain | Skp1 dimerisation domain-like | 4 | 1 | |
| RING/U-box | TRAF domain-like | 3 | 3 | |
| TPR-like | TPR-like | 3 | 3 | |
| N-terminal domain of eukaryotic peptide chain release factor subunit 1, ERF1 | Translational machinery components | 3 | 1 | |
| Nucleic acid-binding proteins | eIF-2-alpha, C-terminal domain | 3 | 1 | |
| eIF2alpha middle domain-like | eIF-2-alpha, C-terminal domain | 3 | 1 | |
| FAD/NAD(P)-binding domain | FAD-linked reductases, C-terminal domain | 3 | 3 | |
| Glucocorticoid receptor-like (DNA-binding domain) | Nuclear receptor ligand-binding domain | 3 | 2 | |
| FAD/NAD(P)-binding domain | FAD/NAD(P)-binding domain | 3 | 2 | |
| Transcription factor IIA (TFIIA), alpha-helical domain | Transcription factor IIA (TFIIA), beta-barrel domain | 3 | 1 | |
| P-loop containing nucleoside triphosphate hydrolases | SMAD/FHA domain | 3 | 2 | |
| Nucleic acid-binding proteins | eIF2alpha middle domain-like | 3 | 1 | |
| POZ domain | Kelch motif | 3 | 2 | |
| EGF/Laminin | EGF/Laminin | 3 | 3 | |
| P-loop containing nucleoside triphosphate hydrolases | C-terminal domain of alpha and beta subunits of F1 ATP synthase | 3 | 2 | |
| Periplasmic binding protein-like I | Calcium ATPase, transmembrane domain M | 3 | 3 | |
| Concanavalin A-like lectins/glucanases | Concanavalin A-like lectins/glucanases | 3 | 1 | |
| Metalloproteases ("zincins"), catalytic domain | Blood coagulation inhibitor (disintegrin) | 3 | 2 | |
| Nucleic acid-binding proteins | Class II aaRS and biotin synthetases | 3 | 2 | |
| N-terminal domain of eukaryotic peptide chain release factor subunit 1, ERF1 | L30e-like | 3 | 1 | |
| P-loop containing nucleoside triphosphate hydrolases | post-AAA+ oligomerization domain-like | 3 | 1 | |
| 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 | |
| Translational machinery components | L30e-like | 3 | 1 | |
| CHY zinc finger-like | RING/U-box | 2 | 1 | |
| Eukaryotic type KH-domain (KH-domain type I) | Eukaryotic type KH-domain (KH-domain type I) | 2 | 2 | |
| Zinc hairpin stack | RING/U-box | 2 | 1 | |
| Tudor/PWWP/MBT | S-adenosyl-L-methionine-dependent methyltransferases | 2 | 2 | |
| NTF2-like | RNA-binding domain, RBD | 2 | 2 | |
| Immunoglobulin | Concanavalin A-like lectins/glucanases | 2 | 2 | |
| Thioredoxin-like | Thioredoxin-like | 2 | 2 | |
| Fibronectin type III | Fibronectin type III | 2 | 2 | |
| Nucleotidyltransferase | PAP/OAS1 substrate-binding domain | 2 | 2 | |
| Family A G protein-coupled receptor-like | Family A G protein-coupled receptor-like | 2 | 1 | |
| Ubiquitin-like | PH domain-like | 2 | 2 | |
| LuxS/MPP-like metallohydrolase | LuxS/MPP-like metallohydrolase | 2 | 1 | |
| F-box domain | WD40 repeat-like | 2 | 1 | |
| GTPase activation domain, GAP | GTPase activation domain, GAP | 2 | 1 | |
| SH3-domain | SH2 domain | 2 | 2 | |
| CHY zinc finger-like | Zinc hairpin stack | 2 | 1 | |
| Nucleic acid-binding proteins | P-loop containing nucleoside triphosphate hydrolases | 2 | 1 | |
| SH3-domain | SH3-domain | 2 | 2 | |
| RING/U-box | Cyclophilin-like | 2 | 1 | |
| NSFL1 (p97 ATPase) cofactor p47, SEP domain | Ubiquitin-like | 2 | 2 | |
| Cullin repeat-like | Cullin homology domain | 2 | 2 | |
| Complement control module/SCR domain | Complement control module/SCR domain | 2 | 2 | |
| Creatinase/aminopeptidase | "Winged helix" DNA-binding domain | 2 | 2 | |
| RING/U-box | NRDP1 C-terminal domain-like | 1 | 1 | |
| C-terminal, gelsolin-like domain of Sec23/24 | VHP, Villin headpiece domain | 1 | 1 | |
| beta-beta-alpha zinc fingers | WW domain | 1 | 1 | |
| L27 domain | PDZ domain-like | 1 | 1 | |
| DEATH domain | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 | |
| Ribonuclease H-like | RuvA domain 2-like | 1 | 1 | |
| SH3-domain | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 | |
| beta-beta-alpha zinc fingers | Ribonuclease H-like | 1 | 1 | |
| Putative isomerase YbhE | WD40 repeat-like | 1 | 1 | |
| Taf5 N-terminal domain-like | WD40 repeat-like | 1 | 1 | |
| WW domain | FKBP-like | 1 | 1 | |
| FYVE/PHD zinc finger | FYVE/PHD zinc finger | 1 | 1 | |
| Ribosomal protein S5 domain 2-like | GHMP Kinase, C-terminal domain | 1 | 1 | |
| Adenine nucleotide alpha hydrolases-like | Argininosuccinate synthetase, C-terminal domain | 1 | 1 | |
| Class II aaRS and biotin synthetases | Class II aaRS ABD-related | 1 | 1 | |
| Inosine monophosphate dehydrogenase (IMPDH) | Inosine monophosphate dehydrogenase (IMPDH) | 1 | 1 | |
| GINS helical bundle-like | PriA/YqbF domain | 1 | 1 | |
| Single hybrid motif | Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex | 1 | 1 | |
| GroEL-intermediate domain like | GroEL-intermediate domain like | 1 | 1 | |
| Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex | CoA-dependent acyltransferases | 1 | 1 | |
| CBS-domain pair | Inosine monophosphate dehydrogenase (IMPDH) | 1 | 1 | |
| RING/U-box | UBA-like | 1 | 1 | |
| Ubiquitin-like | Second domain of FERM | 1 | 1 | |
| beta-sandwich domain of Sec23/24 | Helical domain of Sec23/24 | 1 | 1 | |
| B-box zinc-binding domain | Concanavalin A-like lectins/glucanases | 1 | 1 | |
| Glucocorticoid receptor-like (DNA-binding domain) | SH3-domain | 1 | 1 | |
| Cysteine proteinases | Cysteine proteinases | 1 | 1 | |
| Nitric oxide (NO) synthase oxygenase domain | Riboflavin synthase domain-like | 1 | 1 | |
| PDZ domain-like | SH3-domain | 1 | 1 | |
| DEATH domain | RNI-like | 1 | 1 | |
| WD40 repeat-like | WD40 repeat-like | 1 | 1 | |
| Nucleic acid-binding proteins | Nucleic acid-binding proteins | 1 | 1 | |
| PH domain-like | SH2 domain | 1 | 1 | |
| Zn-finger domain of Sec23/24 | Helical domain of Sec23/24 | 1 | 1 | |
| MFS general substrate transporter | Kazal-type serine protease inhibitors | 1 | 1 | |
| Single hybrid motif | Single hybrid motif | 1 | 1 | |
| P-loop containing nucleoside triphosphate hydrolases | Bromodomain | 1 | 1 | |
| UBA-like | NSFL1 (p97 ATPase) cofactor p47, SEP domain | 1 | 1 | |
| FYSH domain | Hypothetical protein AF0491, middle domain | 1 | 1 | |
| PAP/OAS1 substrate-binding domain | PAP/Archaeal CCA-adding enzyme, C-terminal domain | 1 | 1 | |
| p53-like transcription factors | SH2 domain | 1 | 1 | |
| Flavoproteins | Riboflavin synthase domain-like | 1 | 1 | |
| RuvA domain 2-like | Nucleic acid-binding proteins | 1 | 1 | |
| Nitric oxide (NO) synthase oxygenase domain | Ferredoxin reductase-like, C-terminal NADP-linked domain | 1 | 1 | |
| Zinc-binding domain of translation initiation factor 2 beta | ARM repeat | 1 | 1 | |
| CAD & PB1 domains | UBA-like | 1 | 1 | |
| Putative DNA-binding domain | Cation efflux protein transmembrane domain-like | 1 | 1 | |
| P-loop containing nucleoside triphosphate hydrolases | Myosin rod fragments | 1 | 1 | |
| TRAF domain-like | TRAF domain-like | 1 | 1 | |
| P-loop containing nucleoside triphosphate hydrolases | RNI-like | 1 | 1 | |
| 4'-phosphopantetheinyl transferase | 4'-phosphopantetheinyl transferase | 1 | 1 | |
| Epsilon subunit of F1F0-ATP synthase N-terminal domain | Epsilon subunit of F1F0-ATP synthase C-terminal domain | 1 | 1 | |
| beta-sandwich domain of Sec23/24 | Zn-finger domain of Sec23/24 | 1 | 1 | |
| FAD/NAD(P)-binding domain | FAD/NAD-linked reductases, dimerisation (C-terminal) domain | 1 | 1 | |
| Acyl-CoA N-acyltransferases (Nat) | Acyl-CoA N-acyltransferases (Nat) | 1 | 1 | |
| RING/U-box | Cysteine proteinases | 1 | 1 | |
| Tex N-terminal region-like | Ribonuclease H-like | 1 | 1 | |
| Heat shock protein 70kD (HSP70), C-terminal subdomain | Heat shock protein 70kD (HSP70), C-terminal subdomain | 1 | 1 | |
| Spermadhesin, CUB domain | LCCL domain | 1 | 1 | |
| Myosin S1 fragment, N-terminal domain | Tropomyosin | 1 | 1 | |
| SH2 domain | Protein kinase-like (PK-like) | 1 | 1 | |
| SMAD MH1 domain | SMAD/FHA domain | 1 | 1 | |
| Elongation factor TFIIS domain 2 | Zinc beta-ribbon | 1 | 1 | |
| Myosin rod fragments | Tropomyosin | 1 | 1 | |
| Nucleotide-diphospho-sugar transferases | Ricin B-like lectins | 1 | 1 | |
| SH3-domain | Protein kinase-like (PK-like) | 1 | 1 | |
| Flavoproteins | Ferredoxin reductase-like, C-terminal NADP-linked domain | 1 | 1 | |
| RNA-binding domain, RBD | DPP6 N-terminal domain-like | 1 | 1 | |
| CCCH zinc finger | RING/U-box | 1 | 1 | |
| POZ domain | beta-beta-alpha zinc fingers | 1 | 1 | |
| Second domain of FERM | PH domain-like | 1 | 1 | |
| PRTase-like | Ribulose-phoshate binding barrel | 1 | 1 | |
| "Winged helix" DNA-binding domain | "Winged helix" DNA-binding domain | 1 | 1 | |
| Cap-Gly domain | Cap-Gly domain | 1 | 1 | |
| vWA-like | C-terminal, gelsolin-like domain of Sec23/24 | 1 | 1 | |
| Eukaryotic RPB5 N-terminal domain | RPB5-like RNA polymerase subunit | 1 | 1 | |
| Thiamin diphosphate-binding fold (THDP-binding) | TK C-terminal domain-like | 1 | 1 | |
| Alkaline phosphatase-like | Alkaline phosphatase-like | 1 | 1 | |
| Cullin homology domain | "Winged helix" DNA-binding domain | 1 | 1 | |
| lambda repressor-like DNA-binding domains | Homeodomain-like | 1 | 1 | |
| Nucleotidyltransferase | PAP/Archaeal CCA-adding enzyme, C-terminal domain | 1 | 1 | |
| RNA-binding domain, RBD | PABC (PABP) domain | 1 | 1 | |
| Tex N-terminal region-like | Nucleic acid-binding proteins | 1 | 1 | |
| Aminoacid dehydrogenase-like, N-terminal domain | NAD(P)-binding Rossmann-fold domains | 1 | 1 | |
| Arp2/3 complex subunits | Arp2/3 complex subunits | 1 | 1 | |
| Nitric oxide (NO) synthase oxygenase domain | Flavoproteins | 1 | 1 | |
| L domain-like | L domain-like | 1 | 1 | |
| Methylglyoxal synthase-like | Cytidine deaminase-like | 1 | 1 | |
| L27 domain | SH3-domain | 1 | 1 | |
| Rap/Ran-GAP | Rap/Ran-GAP | 1 | 1 | |
| Translation initiation factor 2 beta, aIF2beta, N-terminal domain | ARM repeat | 1 | 1 | |
| Transducin (alpha subunit), insertion domain | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 | |
| vWA-like | Helical domain of Sec23/24 | 1 | 1 | |
| Calponin-homology domain, CH-domain | EB1 dimerisation domain-like | 1 | 1 | |
| beta-sandwich domain of Sec23/24 | C-terminal, gelsolin-like domain of Sec23/24 | 1 | 1 | |
| Kelch motif | Kelch motif | 1 | 1 | |
| TRAF domain-like | NRDP1 C-terminal domain-like | 1 | 1 | |
| Cyclin-like | Cyclin-like | 1 | 1 | |
| Myosin rod fragments | Myosin rod fragments | 1 | 1 | |
| Cullin repeat-like | "Winged helix" DNA-binding domain | 1 | 1 | |
| UBA-like | Ubiquitin-like | 1 | 1 | |
| SEA domain | Trypsin-like serine proteases | 1 | 1 | |
| RING/U-box | RING/U-box | 1 | 1 | |
| Riboflavin synthase domain-like | Ferredoxin reductase-like, C-terminal NADP-linked domain | 1 | 1 | |
| TPR-like | Protein prenylyltransferase | 1 | 1 | |
| HAD-like | Calcium ATPase, transmembrane domain M | 1 | 1 | |
| Zn-finger domain of Sec23/24 | vWA-like | 1 | 1 | |
| RNA-binding domain, RBD | Retrovirus zinc finger-like domains | 1 | 1 | |
| WW domain | WW domain | 1 | 1 | |
| CAD & PB1 domains | RING/U-box | 1 | 1 | |
| PDZ domain-like | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 | |
| Thiolase-like | Thiolase-like | 1 | 1 | |
| beta-sandwich domain of Sec23/24 | vWA-like | 1 | 1 | |
| Protein prenylyltransferase | Rab geranylgeranyltransferase alpha-subunit, insert domain | 1 | 1 | |
| RING/U-box | WD40 repeat-like | 1 | 1 | |
| SNARE-like | Second domain of Mu2 adaptin subunit (ap50) of ap2 adaptor | 1 | 1 | |
| FYVE/PHD zinc finger | S-adenosyl-L-methionine-dependent methyltransferases | 1 | 1 | |
| P-loop containing nucleoside triphosphate hydrolases | Tropomyosin | 1 | 1 | |
| Protein prenylyltransferase | L domain-like | 1 | 1 | |
| 4Fe-4S ferredoxins | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 | |
| Rap30/74 interaction domains | "Winged helix" DNA-binding domain | 1 | 1 | |
| Helical domain of Sec23/24 | C-terminal, gelsolin-like domain of Sec23/24 | 1 | 1 | |
| Plakin repeat | Plakin repeat | 1 | 1 | |
| SET domain | RuBisCo LSMT C-terminal, substrate-binding domain | 1 | 1 | |
| PAZ domain | Ribonuclease H-like | 1 | 1 | |
| SMAD/FHA domain | RING/U-box | 1 | 1 | |
| HydB/Nqo4-like | HydB/Nqo4-like | 1 | 1 | |
| Ubiquitin-like | SH2 domain | 1 | 1 | |
| Ribonuclease H-like | Nucleic acid-binding proteins | 1 | 1 | |
| BAR/IMD domain-like | SH3-domain | 1 | 1 | |
| Thiamin diphosphate-binding fold (THDP-binding) | Thiamin diphosphate-binding fold (THDP-binding) | 1 | 1 | |
| TRAF domain-like | WD40 repeat-like | 1 | 1 | |
| Myosin S1 fragment, N-terminal domain | Myosin rod fragments | 1 | 1 | |
| Single hybrid motif | CoA-dependent acyltransferases | 1 | 1 | |
| beta-lactamase/transpeptidase-like | Ankyrin repeat | 1 | 1 | |
| GTPase activation domain, GAP | SH3-domain | 1 | 1 | |
| Actin depolymerizing proteins | VHP, Villin headpiece domain | 1 | 1 | |
| UBC-like | UBA-like | 1 | 1 | |
| RING/U-box | Ankyrin repeat | 1 | 1 | |
| P-loop containing nucleoside triphosphate hydrolases | Interferon-induced guanylate-binding protein 1 (GBP1), C-terminal domain | 1 | 1 | |
| Zn-finger domain of Sec23/24 | C-terminal, gelsolin-like domain of Sec23/24 | 1 | 1 | |
| Myosin S1 fragment, N-terminal domain | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 | |
| SNARE fusion complex | SNARE fusion complex | 1 | 1 | |
| Rab geranylgeranyltransferase alpha-subunit, insert domain | L domain-like | 1 | 1 | |
| L domain-like | Immunoglobulin | 1 | 1 | |
| Immunoglobulin | Protein kinase-like (PK-like) | 1 | 1 | |
| Actin depolymerizing proteins | C-terminal, gelsolin-like domain of Sec23/24 | 1 | 1 | |
| Tex N-terminal region-like | RuvA domain 2-like | 1 | 1 | |
| UBA-like | UBA-like | 1 | 1 | |
| L27 domain | P-loop containing nucleoside triphosphate hydrolases | 1 | 1 | |
