Vocabulary

cog.cluster

Cluster of orthologous genes

COGs stands for Clusters of Orthologous Genes. The database was initially created in 1997 (Tatusov et al., PMID: 9381173) followed by several updates, most recently in 2014 (Galperin et al., PMID: 25428365). The current update includes complete genomes of 1,187 bacteria and 122 archaea that map into 1,234 genera. The new features include ~250 updated COG annotations with corresponding references and PDB links, where available;

coggenomelife scienceontologyorthologprotein

E18

FAIR 13/48

Evaluated 26 Oct 2026

How scores work

Source & access

Homepagencbi.nlm.nih.gov Browse in BioPortalNCBO BioPortal

homepage ncbi.nlm.nih.gov HTTP 200

Portals & registries

Also registered as
bioportal: COG fairsharing: FAIRsharing.djsbw2

Automated evaluation

F Findable FAIR7/12

Persistent identifier (F1)no PURL / w3id / DOI for the artefact0
Indexed in services (F4)3: BioPortal, Bioregistry, FAIRsharing+4
Citable reference (F2)doi:10.1126/science.278.5338.631+3

A Accessible FAIR6/12

Homepage reachableHTTP 200+3
Artefact retrievable over HTTP(S) (A1)no download or repository listed0
Metadata persists in a registry (A2)Bioregistry+3

I Interoperable FAIR0/12

Formal machine-readable format (I1)none of: —0
Semantic-web IRIs (I2)no RDF/OWL/JSON-LD representation0
References other vocabularies (I3)no imported vocabularies found0

R Reusable FAIR0/12

Clear license (R1.1)none found0
Release provenance (R1.2)no version in artefact, registry or release tags0
Community standards (R1.3)no independent compliance report (not on the OBO Dashboard)0

Q Ontology consistency & qualityn/a

Not applicablevocabulary without an OWL/OBO/RDF artefact; total scaled from 80 to 1000

M Maintenance0/16

Recencyno activity evidence0
Release cadence (12 months)0 releases0

U Community adoption5/16

Documented adopting projects0 projects0
Reused by other ontologies00
Community signalmax(stars 0 → 0, citations 3042 → 5)+5

P Penalties (inactivity & inconsistency)-5

No activity evidenceno commits, releases or dated files found-5
Inactive statusnot archived, legacy or inactive0

FAIR subtotal 13/48 · earned 18/80 → scaled 23 − 5 inactivity = 18/100 → grade E

Community adoption 0

No adopting projects documented yet.

Know a project that uses cog.cluster? Suggest it.

History & changes 1 run

History starts with the first archived run; changes appear after the next evaluation.

Run	Score	FAIR	Version evaluated	Terms	Snapshot
26 Oct 2026, 03:31 UTC	18 E	13	—	—	JSON

Provenance

Every fact on this page was fetched automatically. Each row shows where it came from and when. If a source fails, the last good value is kept and marked “carried forward”.

Fact	Source	Retrieved
Homepage link check (HTTP 200)	ncbi.nlm.nih.gov	26 Oct 2026, 02:47 UTC
Bioregistry mappings, dependencies & reuse	bioregistry.io	26 Oct 2026, 02:47 UTC
Crossref citations (doi:10.1126/science.278.5338.631)	api.crossref.org	26 Oct 2026, 02:47 UTC
Crossref citations (doi:10.1093/nar/gku1223)	api.crossref.org	26 Oct 2026, 02:47 UTC

Run 2026-10-26T02-37-38Z · evaluator v2.0.0 · rubric v3.4 · entry.json · run snapshot

How to cite

A genomic perspective on protein families (1997) · doi:10.1126/science.278.5338.631 · 3,042 citations
Expanded microbial genome coverage and improved protein family annotation in the COG database (2014) · doi:10.1093/nar/gku1223 · 1,548 citations