Ontology

REXO

Regulation of Gene Expression Ontology

Regulation of Gene Expression Ontology: Regulation of Gene Expression. A ontology listed in Bioregistry, OLS (EMBL-EBI).

expression datalife scienceontologyorthologousregulation of gene expression

E10

FAIR 29/48

Version file of 2017-05-05

Evaluated 26 Oct 2026

How scores work

Source & access

Homepagesemantic-systems-biology.org DownloadCanonical file / PURL Browse in OLSEMBL-EBI Ontology Lookup Service Browse in BioPortalNCBO BioPortal

homepage semantic-systems-biology.org HTTP 404
download bio.ntnu.no HTTP 200

Portals & registries

Source	ID	Version	Classes	Properties	Individuals	Loaded
OLS (EMBL-EBI)	`rexo`	—	158,239	12	0	25 Oct 2026

Ontology IRI http://purl.obolibrary.org/obo/ReXO_

Languages en

Imports from (8)
GO MI MOD NCBITaxon OGMS PR RO SIO

Also registered as
aberowl: REXO bioportal: REXO fairsharing: FAIRsharing.recas1 ols: rexo

Automated evaluation

F Findable FAIR8/12

Persistent identifier (F1)no PURL / w3id / DOI for the artefact0
Indexed in services (F4)4: OLS, BioPortal, Bioregistry, FAIRsharing+5
Citable reference (F2)doi:10.1186/s12859-014-0386-y+3

A Accessible FAIR9/12

Homepage reachableHTTP 4040
Artefact retrievable over HTTP(S) (A1)download HTTP 200+6
Metadata persists in a registry (A2)Bioregistry+3

I Interoperable FAIR12/12

Formal machine-readable format (I1)OWL, OBO, RDF+5
Semantic-web IRIs (I2)OWL, OBO, RDF+3
References other vocabularies (I3)imports 8: go, mi, mod, ncbitaxon, ogms, pr, ro, sio+4

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 & quality1/20

Logical consistencynever checked by a reasoner0
OWL 2 DL profileprofile not checked0
Upper-ontology alignmentno BFO/COB/DOLCE import found0
Standard relations (RO)imports RO+1
ROBOT report: no errorsno ROBOT report available0
ROBOT report: warning densityno ROBOT report available0
Pitfall scan: no critical pitfallsno pitfall scan or ROBOT report yet0

M Maintenance0/16

Recency2017-05-05 → 113.7 months (older / unknown)0
Release cadence (12 months)0 releases0

U Community adoption0/16

Documented adopting projects0 projects0
Reused by other ontologies00
Community signalmax(stars 0 → 0, citations 8 → 0)0

P Penalties (inactivity & inconsistency)-20

Time since last activity9.5 years → 4 × max(0, 9.5 − 1) (capped)-20
Inactive statusnot archived, legacy or inactive0
Consistencynot yet checked by a reasoner0

FAIR subtotal 29/48 · earned 30/100 − 20 inactivity = 10/100 → grade E

Community adoption 0

No adopting projects documented yet.

Know a project that uses REXO? 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	10 E	29	file of 2017-05-05	158,239	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 404)	semantic-systems-biology.org	26 Oct 2026, 03:19 UTC
Download link check (HTTP 200)	bio.ntnu.no	26 Oct 2026, 03:19 UTC
Artefact header	bio.ntnu.no	26 Oct 2026, 03:19 UTC
OLS classes, imports, version & release	ebi.ac.uk	26 Oct 2026, 03:19 UTC
Bioregistry mappings, dependencies & reuse	bioregistry.io	26 Oct 2026, 03:19 UTC
Crossref citations (doi:10.1186/s12859-014-0386-y)	api.crossref.org	26 Oct 2026, 02:57 UTC