Logo for Sequence types and features ontology The Sequence Ontology (SO) is a structured controlled vocabulary for the parts of a genomic annotation. It provides a common set of terms and definitions to facilitate the exchange, analysis and management of genomic data.

Preferred Prefix
bioinformatics biology deoxyribonucleic acid dna gene genome life science obo ontology ribonucleic acid rna sequence sequence annotation sequence feature structure
Homepage Repository OBO OWL
Karen Eilbeck   0000-0002-0831-6427   keilbeck
Pattern for Local Unique Identifiers

Local identifiers in Sequence types and features ontology should match this regular expression:

Example Local Unique Identifier
0001157   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from Sequence types and features ontology should match this regular expression:

Example CURIE
MIRIAM Namespace Embedded in LUI
The legacy MIRIAM standard for generating CURIEs with this resource annotates the namespaceEmbeddedInLUI as true. This means that you may see local unique identifiers that include a redundant prefix and delimiter (also known as a banana) and therefore look like a CURIE. For Sequence types and features ontology, the banana looks like SO:. Therefore, you may see local unique identifiers for this resource that look like SO:0001157 (instead of the canonical form 0001157) and CURIEs for this resource that look like SO:SO:0001157 (instead of the canonical form SO:0001157). The Bioregistry will automatically strip off the banana when standardizing local unique identifiers and CURIEs.

A summary of the relations in the Bioregistry schema can be found here.

Appears In (1) (bioregistry.schema:0000018 )
In Collection
FHIR External Terminologies
Metaregistry Sequence types and features ontology

The metaregistry provides mappings between the Bioregistry and other registries. There are 12 mappings to external registries for this resource with 2 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
AberOWL AberOWL logo aberowl SO
AgroPortal AgroPortal logo agroportal SO
BioContext biocontext SO
BioPortal BioPortal Prefixes logo bioportal SO
FAIRSharing FAIRSharing logo fairsharing FAIRsharing.6bc7h9
GO Gene Ontology Registry logo go SO
Identifiers.org Identifiers.org logo miriam so
N2T Name-to-Thing logo n2t so
OBO Foundry OBO Foundry logo obofoundry so
OLS Ontology Lookup Service logo ols so
OntoBee OntoBee logo ontobee SO
Prefix Commons Prefix Commons logo prefixcommons so
RDF Information

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



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 0001157 is used to demonstrate the providers available for Sequence types and features ontology. A guide for curating additional providers can be found here.

Name Metaprefix URI
Sequence types and features ontology so http://purl.obolibrary.org/obo/SO_0001157
Sequence types and features ontology (RDF) rdf http://purl.obolibrary.org/obo/SO_0001157
Bioregistry bioregistry https://bioregistry.io/so:0001157
Identifiers.org miriam https://identifiers.org/SO:0001157
OBO Foundry obofoundry http://purl.obolibrary.org/obo/SO_0001157
Ontology Lookup Service ols https://www.ebi.ac.uk/ols4/ontologies/so/terms?iri=http://purl.obolibrary.org/obo/SO_0001157
Name-to-Thing n2t https://n2t.net/so:0001157
BioPortal Prefixes bioportal https://bioportal.bioontology.org/ontologies/SO/?p=classes&conceptid=http://purl.obolibrary.org/obo/SO_0001157
Extra Providers

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

Code Name URL
bio2rdf Bio2RDF http://bio2rdf.org/so:0001157