Ontology

MRO

MHC Restriction Ontology

The MHC Restriction Ontology is an application ontology capturing how Major Histocompatibility Complex (MHC) restriction is defined in experiments, spanning exact protein complexes, individual protein chains, serotypes, haplotypes and mutant molecules, as well as evidence for MHC restrictions.

immune systemimmunologymajor histocompatibility complexoboontology
A85

FAIR 48/48

Version 2026-10-20

Evaluated 26 Oct 2026

How scores work

Source & access

Homepagegithub.com DownloadCanonical file / PURL Browse in OLSEMBL-EBI Ontology Lookup ServiceBrowse in OBO FoundryOBO Foundry registry

Portals & registries

SourceIDVersionClassesPropertiesIndividualsLoaded
OLS (EMBL-EBI)mro2026-10-2051,44640025 Oct 2026
OBO Dashboardmro2026-09-1551,435——16 Sept 2026

Ontology IRI http://purl.obolibrary.org/obo/mro.owl
Version IRI http://purl.obolibrary.org/obo/mro/2026-10-20/mro.owl

Languages en

Imports from (10)
BFO COB ECO GO IAO NCBITaxon OBI PR RO SO

Reused by (1)
OBI

Logical consistency
consistent · 0 unsatisfiable
OWL 2 DL
no
ROBOT report
0 errors · 56,303 warnings · 0 info
OBO principles
FP01FP02FP03FP04FP05FP06FP07FP08FP09FP11FP12FP16FP20
Axioms
419,488 · 0.23% entities reused

Also registered as
aberowl: MRO fairsharing: FAIRsharing.k893xa obofoundry: mro ols: mro ontobee: MRO wikidata.entity: Q81661712

Automated evaluation

F Findable FAIR12/12
  • Persistent identifier (F1)purl.obolibrary.org+4
  • Indexed in services (F4)4: OLS, OBO Foundry, Bioregistry, FAIRsharing+5
  • Citable reference (F2)doi:10.1186/s13326-016-0045-5+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+5
  • Semantic-web IRIs (I2)OWL+3
  • References other vocabularies (I3)imports 10: bfo, cob, eco, go, iao, ncbitaxon, obi, pr…+4
R Reusable FAIR12/12
  • Clear license (R1.1)CC BY 3.0+5
  • Release provenance (R1.2)2026-10-20 (version IRI in the artefact)+4
  • Community standards (R1.3)OBO principles: 11/13 checks pass+3
Q Ontology consistency & quality17/20
  • 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 density56303 warnings / 51435 classes = 1.090
  • Pitfall scan: no critical pitfallsno pitfall scan yet; ROBOT report has 0 errors+1
M Maintenance16/16
  • Recency2026-10-20 → 0.2 months (≤ 3 months)+10
  • Release cadence (12 months)10 releases (GitHub releases)+6
U Community adoption4/16
  • Documented adopting projects1 project+2
  • Reused by other ontologies1: obi+1
  • Community signalmax(stars 14 → 1, citations 34 → 1)+1
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 48/48 · earned 85/100 = 85/100 → grade A

Community adoption 1

  • iedb.org

    MRO is used by the The Immune Epitope Database (IEDB) annotations

    Source: OBO Foundry registry

Know a project that uses MRO? 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 UTC85 A482026-10-2051,446JSON

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)github.com26 Oct 2026, 03:06 UTC
Repository link check (HTTP 200)github.com26 Oct 2026, 03:06 UTC
Download link check (HTTP 200)purl.obolibrary.org26 Oct 2026, 03:06 UTC
Artefact header (version IRI)release-assets.githubusercontent.com26 Oct 2026, 03:06 UTC
Git refs (commit 09d142f, latest tag v2026-10-20)github.com26 Oct 2026, 03:06 UTC
GitHub repository statisticsapi.github.com26 Oct 2026, 03:06 UTC
OLS classes, imports, version & releaseebi.ac.uk26 Oct 2026, 03:06 UTC
OBO Foundry status, license & usagesobofoundry.org26 Oct 2026, 02:37 UTC
Bioregistry mappings, dependencies & reusebioregistry.io26 Oct 2026, 03:06 UTC
OBO Dashboard (checked 16 Sept 2026)dashboard.obofoundry.org26 Oct 2026, 02:37 UTC
Crossref citations (doi:10.1186/s13326-016-0045-5)api.crossref.org26 Oct 2026, 03:06 UTC

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

How to cite