Object Property: xref

http://www.biopax.org/release/biopax-level3.owl#xref

Annotations (1)

comment "Values of this property define external cross-references from this entity to entities in external databases." (en)

Domains (1)

BioSource or ControlledVocabulary or Entity or EntityReference or Evidence or Provenance

Ranges (1)

Xref

Usage (3)

ObjectProperty: xref
ControlledVocabulary ⊆ xref only UnificationXref
Provenance ⊆ xref only (PublicationXref or UnificationXref)