The Experimental Factor Ontology (EFO) provides a systematic description of many experimental variables available in EBI databases. It combines parts of several biological ontologies, such as anatomy, disease and chemical compounds. The scope of EFO is to support the annotation, analysis and visualization of data handled by the EBI Functional Genomics Team.

Preferred Prefix
assay experimental condition experimental measurement functional genomics genome-wide association study independent variable ontology study design
Homepage Repository OBO OWL
Trish Whetzel   0000-0002-3458-4839   twhetzel
Identifier Space Owner
European Bioinformatics Institute
Pattern for Local Unique Identifiers

Local identifiers in Experimental Factor Ontology should match this regular expression:

Example Local Unique Identifier
0005147   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from Experimental Factor Ontology should match this regular expression:

Example CURIE
2010 Modeling sample variables with an Experimental Factor Ontology
Metaregistry Experimental Factor Ontology

The metaregistry provides mappings between the Bioregistry and other registries. There are 12 mappings to external registries for this resource with 3 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
AberOWL AberOWL logo aberowl EFO
AgroPortal AgroPortal logo agroportal EFO
BioContext biocontext EFO
Biolink Biolink Model Registry logo biolink EFO
BioPortal BioPortal Prefixes logo bioportal EFO
Cellosaurus Cellosaurus Registry logo cellosaurus EFO
FAIRSharing FAIRSharing logo fairsharing FAIRsharing.1gr4tz logo miriam efo
N2T Name-to-Thing logo n2t efo
OLS Ontology Lookup Service logo ols efo
OntoBee OntoBee logo ontobee EFO
Wikidata Wikidata Property logo wikidata P11956

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier 0005147 is used to demonstrate the providers available for Experimental Factor Ontology. A guide for curating additional providers can be found here.

Name Metaprefix URI
Experimental Factor Ontology efo
Bioregistry bioregistry miriam
Name-to-Thing n2t
Extra Providers

Additional providers curated in the Bioregistry are listed here. These are typically inherited from or Prefix Commons, and need extra curation.

Code Name URL
ebi EFO through Functional Genomics Group (EBI)