ExternalIdentifier

---

search: boost: 1.0 ---# Type: ExternalIdentifier

An identifier of an object from an external source, such as a gene product, an ontology term, or a publication.

URI: xsd:string

Type Properties

Property	Value
Type Of	String
Base	str
Type URI	xsd:string
## Value Constraints

Property	Value
Regex Pattern	^(?:[A-Za-z][A-Za-z0-9_\-.]*:[A-Za-z0-9_\-.:/]+)$

Additional Constraints

**Structured Pattern:** - **Syntax:** `{prefix}:{local_id}` - **Interpolated:** True

Identifier and Mapping Information

Schema Source

• from schema: https://w3id.org/geneontology/go-standard-annotation-schema

Mappings

Mapping Type	Mapped Value
self	go_standard_annotation_schema:ExternalIdentifier
native	go_standard_annotation_schema:ExternalIdentifier