Ontology

PR

Protein Ontology

The PRotein Ontology (PRO) has been designed to describe the relationships of proteins and protein evolutionary classes, to delineate the multiple protein forms of a gene locus (ontology for protein forms), and to interconnect existing ontologies.

annotationbiocurationbiologycraniofacial phenotypedata analysisdisease phenotypeenhancerfunctional genomics
B83

FAIR 47/48

Version 73.1

Evaluated 26 Oct 2026

How scores work

Source & access

Homepageproconsortium.org Repositorygithub.com DownloadCanonical file / PURL Browse in OLSEMBL-EBI Ontology Lookup ServiceBrowse in BioPortalNCBO BioPortalBrowse in OBO FoundryOBO Foundry registry

Portals & registries

SourceIDVersionClassesPropertiesIndividualsLoaded
OLS (EMBL-EBI)pr—332,99059025 Oct 2026
OBO Dashboardpr—365,852——11 Dec 2025

Ontology IRI http://purl.obolibrary.org/obo/pr.owl
Version IRI http://purl.obolibrary.org/obo/pr/73.1/pr.owl

Languages en

Imports from (11)
BFO CHEBI CL COB GNO GO IAO MOD NCBITaxon RO SO

Reused by (73)
ADO AISM BMONT CHEMINF CHIRO CIDO CL CLO CTENO DIDEO FLOPO FOODON FYPO GENEPIO GO HP HTN ICEO ICO INO MAXO MP MRO NCRO OBA OBCS OBI OBIB OHMI OHPI OMIT ONE ONS OPMI PCL PROCO PSDO SCDO STATO TXPO UBERON UPHENO VO BCGO BCO CARO CCO CHMO COB COVOC ECAO ECO ECOCORE EFO EUPATH FOVT GEXO HCAO HGNC IDOCOVID19 IDOMAL MICRO MSIO PBPKO PHIPO PREFER PRIDE RBO RETO REXO SLSO VBO XPO

Logical consistency
consistent · 0 unsatisfiable
OWL 2 DL
no
ROBOT report
0 errors · 1,505 warnings · 0 info
OBO principles
FP01FP02FP03FP04FP05FP06FP07FP08FP09FP11FP12FP16FP20
Axioms
4,338,065 · 28.68% entities reused

Also registered as
aberowl: PR agroportal: PR bioportal: PR fairsharing: FAIRsharing.4ndncv obofoundry: pr ols: pr ontobee: PR wikidata.entity: Q55118584

Automated evaluation

F Findable FAIR12/12
  • Persistent identifier (F1)purl.obolibrary.org+4
  • Indexed in services (F4)5: OLS, BioPortal, OBO Foundry, Bioregistry, FAIRsharing+5
  • Citable reference (F2)doi:10.1093/nar/gkw1075+3
A Accessible FAIR12/12
  • Homepage reachableHTTP 200+3
  • Artefact retrievable over HTTP(S) (A1)download HTTP 200+6
  • Metadata persists in a registry (A2)OBO Foundry, Bioregistry+3
I Interoperable FAIR12/12
  • Formal machine-readable format (I1)OWL, OBO+5
  • Semantic-web IRIs (I2)OWL, OBO+3
  • References other vocabularies (I3)imports 11: bfo, chebi, cl, cob, gno, go, iao, mod…+4
R Reusable FAIR11/12
  • Clear license (R1.1)CC BY 4.0+5
  • Release provenance (R1.2)73.1 (version IRI in the artefact)+4
  • Community standards (R1.3)OBO principles: 9/13 checks pass+2
Q Ontology consistency & quality18/20
  • Logical consistencyconsistent, 0 unsatisfiable classes (OBO Dashboard)+10
  • OWL 2 DL profileoutside OWL 2 DL0
  • Upper-ontology alignmentimports BFO, COB+3
  • Standard relations (RO)imports RO+1
  • ROBOT report: no errors0 errors+2
  • ROBOT report: warning density1505 warnings / 365852 classes = 0.00+1
  • Pitfall scan: no critical pitfallsno pitfall scan yet; ROBOT report has 0 errors+1
M Maintenance10/16
  • Recency2026-10-24 → 0.1 months (≤ 3 months)+10
  • Release cadence (12 months)0 releases0
U Community adoption8/16
  • Documented adopting projects2 projects+2
  • Reused by other ontologies73: ado, aism, bmont, cheminf, chiro, cido…+4
  • Community signalmax(stars 16 → 1, citations 102 → 2)+2
P Penalties (inactivity & inconsistency)0
  • Time since last activity0.0 years → 4 × max(0, 0.0 − 1)0
  • Inactive statusnot archived, legacy or inactive0
  • Consistencyconsistent, no unsatisfiable classes0

FAIR subtotal 47/48 · earned 83/100 = 83/100 → grade B

Community adoption 2

  • github.com

    Colorado Richly Annotated Full-Text (CRAFT) Corpus; PRO is used for entity tagging and annotation

    Source: OBO Foundry registry
  • obofoundry.org

    Cell Ontology is a structured controlled vocabulary for cell types in animals; PRO is used for cell type definitions

    Source: OBO Foundry registry

Know a project that uses PR? Suggest it.

History & changes 1 run

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

RunScoreFAIRVersion evaluatedTermsSnapshot
26 Oct 2026, 03:31 UTC83 B4773.1332,990JSON

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”.

FactSourceRetrieved
Homepage link check (HTTP 200)proconsortium.org26 Oct 2026, 03:15 UTC
Repository link check (HTTP 200)github.com26 Oct 2026, 03:15 UTC
Download link check (HTTP 200)purl.obolibrary.org26 Oct 2026, 03:15 UTC
Artefact header (version IRI)proconsortium.org26 Oct 2026, 03:15 UTC
Git refs (commit a307623)github.com26 Oct 2026, 03:15 UTC
GitHub repository statisticsapi.github.com26 Oct 2026, 03:15 UTC
OLS classes, imports, version & releaseebi.ac.uk26 Oct 2026, 03:15 UTC
OBO Foundry status, license & usagesobofoundry.org26 Oct 2026, 02:37 UTC
Bioregistry mappings, dependencies & reusebioregistry.io26 Oct 2026, 03:15 UTC
OBO Dashboard (checked 11 Dec 2025)dashboard.obofoundry.org26 Oct 2026, 02:37 UTC
Crossref citations (doi:10.1093/nar/gkw1075)api.crossref.org26 Oct 2026, 03:15 UTC
Crossref citations (doi:10.1093/nar/gkt1173)api.crossref.org26 Oct 2026, 03:15 UTC

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

How to cite