The cross-references section of UniProtKB entries displays explicit and implicit links to databases such as nucleotide sequence databases, model organism databases and genomics and proteomics resources.

Prefix
uniprot.resource
Alternative Prefixes
uniprot.database uniprot.db
Links
Homepage
Contact
Missing Contact
Pattern for Local Unique Identifiers

Local identifiers in UniProt Resource should match this regular expression:
^DB-\d{4}$

Example Local Unique Identifier
DB-0174   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from UniProt Resource should match this regular expression:
^uniprot\.resource:DB-\d{4}$

Example CURIE
uniprot.resource:DB-0174
Contributors
Ontology

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

Part Of (bfo:0000050 )
uniprot
Providers

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 DB-0174 is used to demonstrate the providers available for UniProt Resource. A guide for curating additional providers can be found here.

Name Metaprefix URI
UniProt Resource uniprot.resource https://www.uniprot.org/database/DB-0174
Bioregistry bioregistry https://bioregistry.io/uniprot.resource:DB-0174