The taxonomy contains the relationships between all living forms for which nucleic acid or protein sequence have been determined.

Preferred Prefix
Alternative Prefixes
TAX NCBI_taxid NCBI Taxonomy taxid taxonomy NCBITaxon NCBITaxonomyID taxon uniprot.taxonomy NCBI_Taxon_ID TaxonomyID
classification dna life science obo ontology phylogenetics protein structure taxonomic classification taxonomy
Homepage Repository OBO OWL OBO JSON
Conrad L Schoch   0000-0003-1839-5322   fbastian
Identifier Space Owner
National Center for Biotechnology Information
Pattern for Local Unique Identifiers

Local identifiers in NCBI Taxonomy should match this regular expression:

Example Local Unique Identifier
2170610   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from NCBI Taxonomy should match this regular expression:

Example CURIE
Metaregistry NCBI Taxonomy

The metaregistry provides mappings between the Bioregistry and other registries. There are 20 mappings to external registries for this resource with 10 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
AberOWL AberOWL logo aberowl NCBITAXON
AgroPortal AgroPortal logo agroportal NCBITAXON
BARTOC Basic Register of Thesauri, Ontologies & Classifications logo bartoc 509
BioContext biocontext TAXONOMY
BioPortal BioPortal Prefixes logo bioportal NCBITAXON
Cellosaurus Cellosaurus Registry logo cellosaurus NCBI_TaxID
EDAM EDAM Ontology logo edam 1179
FAIRSharing FAIRSharing logo fairsharing FAIRsharing.fj07xj
GO Gene Ontology Registry logo go taxon
HL7 HL7 External Code Systems logo hl7 2.16.840.1.113883.6.205 logo miriam taxonomy
N2T Name-to-Thing logo n2t taxonomy
NCBI National Center for Biotechnology Information Registry logo ncbi taxon
OBO Foundry OBO Foundry logo obofoundry ncbitaxon
OLS Ontology Lookup Service logo ols ncbitaxon
OntoBee OntoBee logo ontobee NCBITaxon
Prefix Commons Prefix Commons logo prefixcommons taxonomy
re3data Registry of Research Data Repositories logo re3data r3d100010415
TogoID togoid Taxonomy
Wikidata Wikidata Property logo wikidata P685
RDF Information

When using this resource in RDF, the following URI format should be used:$1


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 2170610 is used to demonstrate the providers available for NCBI Taxonomy. A guide for curating additional providers can be found here.

Name Metaprefix URI
NCBI Taxonomy ncbitaxon
NCBI Taxonomy (RDF) rdf
Bioregistry bioregistry miriam
OBO Foundry obofoundry
Ontology Lookup Service ols
Name-to-Thing n2t
BioPortal Prefixes bioportal
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
CURATOR_REVIEW Taxonomy through UniProt PURL
bio2rdf Bio2RDF
ebi European Nucleotide Archive (ENA)
scholia Scholia