Enzyme Commission (EC)
Each enzyme is allocated a four-digit EC number, the first three digits of which define the reaction catalysed and the fourth of which is a unique identifier (serial number). Each enzyme is also assigned a systematic name that uniquely defines the reaction catalysed. To navigate hierarchical structure of EC, we display all parental EC terms to the current EC term of interest ordered by their shortest distances to the current term. Also, only direct children EC terms of the current EC term are listed.
Structural Classification of Proteins (SCOP)
SCOP classifies evolutionary-related domains into
Superfamily level and
Family level. Accordingly, we have generated the domain-centric EC annotations for each of the three concepts at each of the two domain levels.
Structural Domain Enzyme Commission Ontology (SDEO)
As domain-centric ontology, SDEO only refers to those EC terms which are the most informative to annotate SCOP domains.
EC annotations for SCOP domains
For details, please visit
Documentation: EC annotations for SCOP domains. Therein, we provide several relevant files (
Data Availability) for the download, including an annotation file (i.e.,
Domain2EC.txt) and the corresponding ontology (i.e.,
SDEO.txt).
Supra-domain Enzyme Commission Ontology (SPEO)
As an extension, SPEO includes those EC terms which are the most informative to annotate supra-domains and individual SCOP domains at the
Superfamily level.
EC annotations for Supra-domains
For details, please visit
Documentation: EC annotations for Supra-domains. Therein, we provide several relevant files (
Data Availability) for the download, including a annotation file (i.e.,
SP2EC.txt) and an ontology (i.e.,
SPEO.txt). For the sake of being browsable, listed below are those supra-domains (single, dual, triple, quad).
Trees by TreeVector
A presence/absence matrix is generated using protein domains and supradomains
for all genomes in SUPERFAMILY. The RAxML
software is used to produce a single, large tree topology using
heuristic parsimony methods. Genome combinations, or specific clades, can be displayed as
if individual trees had been produced. However, this data is extracted from the single
large tree. This produces a higher quality topology than if the trees had been produced
on their own, and allows the trees to be displayed instantly.
Supra-domain (Duplex) in N- to C-terminal order |
FDR (all) |
Annotation (direct or inherited) |
55681,52954 55681 - Class II aaRS and biotin synthetases 52954 - Class II aaRS ABD-related | 0 | Direct |
101353,55186 101353 - Putative anticodon-binding domain of alanyl-tRNA synthetase (AlaRS) 55186 - ThrRS/AlaRS common domain | 0 | Direct |
47323,47323 47323 - Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases 47323 - Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | 0 | Direct |
46955,55681 46955 - Putative DNA-binding domain 55681 - Class II aaRS and biotin synthetases | 0 | Direct |
47616,52374 47616 - GST C-terminal domain-like 52374 - Nucleotidylyl transferase | 0 | Direct |
101353,50447 101353 - Putative anticodon-binding domain of alanyl-tRNA synthetase (AlaRS) 50447 - Translation proteins | 0 | Direct |
50249,55681 50249 - Nucleic acid-binding proteins 55681 - Class II aaRS and biotin synthetases | 0 | Direct |
50447,55186 50447 - Translation proteins 55186 - ThrRS/AlaRS common domain | 0 | Direct |
55681,55826 55681 - Class II aaRS and biotin synthetases 55826 - YbaK/ProRS associated domain | 0 | Direct |
52374,160113 52374 - Nucleotidylyl transferase 160113 - YegP-like | 0 | Direct |
47060,55681 47060 - S15/NS1 RNA-binding domain 55681 - Class II aaRS and biotin synthetases | 0 | Direct |
46589,55681 46589 - tRNA-binding arm 55681 - Class II aaRS and biotin synthetases | 0 | Direct |
52374,47323 52374 - Nucleotidylyl transferase 47323 - Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | 0 | Direct |
47060,52374 47060 - S15/NS1 RNA-binding domain 52374 - Nucleotidylyl transferase | 0 | Direct |
50249,56037 50249 - Nucleic acid-binding proteins 56037 - PheT/TilS domain | 0 | Direct |
52374,50715 52374 - Nucleotidylyl transferase 50715 - Ribosomal protein L25-like | 0 | Direct |
52374,48163 52374 - Nucleotidylyl transferase 48163 - An anticodon-binding domain of class I aminoacyl-tRNA synthetases | 0 | Direct |
55681,55261 55681 - Class II aaRS and biotin synthetases 55261 - GAD domain-like | 0 | Direct |
47323,47060 47323 - Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases 47060 - S15/NS1 RNA-binding domain | 0 | Direct |
52374,50249 52374 - Nucleotidylyl transferase 50249 - Nucleic acid-binding proteins | 0 | Direct |
56037,46955 56037 - PheT/TilS domain 46955 - Putative DNA-binding domain | 0 | Direct |
55190,52374 55190 - Arginyl-tRNA synthetase (ArgRS), N-terminal 'additional' domain 52374 - Nucleotidylyl transferase | 0 | Direct |
55681,54991 55681 - Class II aaRS and biotin synthetases 54991 - Anticodon-binding domain of PheRS | 0 | Direct |
52374,55174 52374 - Nucleotidylyl transferase 55174 - Alpha-L RNA-binding motif | 0 | Direct |
47060,47060 47060 - S15/NS1 RNA-binding domain 47060 - S15/NS1 RNA-binding domain | 0 | Direct |
50677,52374 50677 - ValRS/IleRS/LeuRS editing domain 52374 - Nucleotidylyl transferase | 0 | Direct |
55186,55681 55186 - ThrRS/AlaRS common domain 55681 - Class II aaRS and biotin synthetases | 0 | Direct |
109604,47323 109604 - HD-domain/PDEase-like 47323 - Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases | 0 | Direct |
47323,50249 47323 - Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases 50249 - Nucleic acid-binding proteins | 0 | Direct |
81271,55186 81271 - TGS-like 55186 - ThrRS/AlaRS common domain | 0 | Direct |
47323,46589 47323 - Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases 46589 - tRNA-binding arm | 0 | Direct |
57770,52374 57770 - Methionyl-tRNA synthetase (MetRS), Zn-domain 52374 - Nucleotidylyl transferase | 0 | Direct |
46955,56037 46955 - Putative DNA-binding domain 56037 - PheT/TilS domain | 0 | Direct |
52954,64586 52954 - Class II aaRS ABD-related 64586 - C-terminal domain of ProRS | 0 | Direct |
55681,101353 55681 - Class II aaRS and biotin synthetases 101353 - Putative anticodon-binding domain of alanyl-tRNA synthetase (AlaRS) | 0 | Direct |
46785,46785 46785 - "Winged helix" DNA-binding domain 46785 - "Winged helix" DNA-binding domain | 0.0003379 | Direct |
Trees by TreeVector
A presence/absence matrix is generated using protein domains and supradomains
for all genomes in SUPERFAMILY. The RAxML
software is used to produce a single, large tree topology using
heuristic parsimony methods. Genome combinations, or specific clades, can be displayed as
if individual trees had been produced. However, this data is extracted from the single
large tree. This produces a higher quality topology than if the trees had been produced
on their own, and allows the trees to be displayed instantly.