Prefix Name License Download
ac Activity Streams
aop AOPWiki
aop.events AOPWiki (Key Event)
aop.relationships AOPWiki (Key Event Relationship)
aop.stressor AOPWiki (Stressor)
aopo Adverse Outcome Pathway Ontology Apache-2.0
bioregistry Bioregistry CC0-1.0
cas Chemical Abstracts Service Registry Number
chebi Chemical Entities of Biological Interest CC-BY-4.0
chembl.compound ChEMBL Compound CC-BY-SA-3.0
cheminf Chemical Information Ontology CC0-1.0
chemspider ChemSpider Custom
cl Cell Ontology CC-BY-4.0
comptox DSSTox substance
dbpedia.property DBPedia Property
dbpedia.resource DBPedia Resource
dc Dublin Core Elements (1.1) Deprecated
dcterms Dublin Core Metadata Initiative Terms CC-BY-4.0
drugbank DrugBank Custom
edam EDAM Ontology CC-BY-SA-4.0
efo Experimental Factor Ontology Apache-2.0
ensembl Ensembl Gene Custom
fma Foundational Model of Anatomy Deprecated CC-BY-4.0
foaf Friend of a Friend CC-BY-1.0
formats File Formats
geo Gene Expression Omnibus Custom
geosparql GeoSPARQL Apache-2.0
geosparql.function GeoSPARQL Function
geosparql.rule GeoSPARQL Rule
go Gene Ontology CC-BY-4.0
gpml WikiPathways GPML Vocabulary
First Party
CC0-1.0
gr GoodRelations
hgnc HUGO Gene Nomenclature Committee CC0-1.0
hmdb Human Metabolome Database Custom
hp Human Phenotype Ontology hpo
ido Infectious Disease Ontology CC-BY-3.0
inchikey InChIKey
kegg.compound KEGG Compound
ldp Linked Data Platform Vocabulary
lipidmaps LIPID MAPS Custom
math Math Vocabulary
mesh Medical Subject Headings CC0-1.0
mf Mental Functioning Ontology CC-BY-3.0
mi Molecular Interactions Controlled Vocabulary CC-BY-4.0
mmo Measurement method ontology CC0-1.0
mp Mammalian Phenotype Ontology CC-BY-4.0
nbo Neuro Behavior Ontology CC-BY-3.0
ncbigene NCBI Gene
ncbitaxon NCBI Taxonomy CC0-1.0
ncit National Cancer Institute Thesaurus CC-BY-4.0
oa Web Annotation Ontology
obo Open Biological and Biomedical Ontologies CC-BY-4.0
ogc.sf Open Geospatial Consortium Simple Features Vocabulary
owl Web Ontology Language
pato Phenotype And Trait Ontology CC-BY-3.0
pav Provenance, Authoring, and Versioning Vocabulary Apache-2.0
pco Population and Community Ontology CC0-1.0
pr Protein Ontology CC-BY-4.0
prov PROV Namespace W3C-20150513
pubchem.compound PubChem compound
pubmed PubMed
rbo Radiation Biology Ontology CC-BY-3.0
rdf Resource Description Framework
rdfa RDFa Vocabulary for Term and Prefix Assignment, and for Processor Graph Reporting
rdfs RDF Schema
sd SPARQL 1.1 Service Description
sh Shapes Constraint Language W3C-20150513
sioc.core Semantically-Interlinked Online Communities Core Ontology CC-BY-1.0
skos Simple Knowledge Organization System W3C-2023
stat POSIX Statistics Operations
uberon Uber Anatomy Ontology CC-BY-3.0
uniprot UniProt Protein CC-BY-4.0
vcard Virtual Contact File
void Vocabulary of Interlinked Datasets
vt Vertebrate trait ontology CC-BY-4.0
wikidata Wikidata CC0-1.0
xml Extensible Markup Language
xsd XML Schema Definition