---
title: UniProt Knowledgebase
description: The UniProt Knowledgebase (UniProtKB) is a comprehensive resource for
  protein sequence and functional information with extensive cross-references to more
  than 120 external databases. Besides amino acid sequence and a description, it also
  provides taxonomic data and citation information.
tags:
- database
- protein
- reference-database
- sequence
source_url: https://www.uniprot.org/
---

# UniProt Knowledgebase

> **Mirrored metadata.** This card is reproduced on Atlas for discovery. The artifact itself is not hosted here — follow the source link for the files, and refer to the upstream licence for terms of use.

The UniProt Knowledgebase (UniProtKB) is a comprehensive resource for protein sequence and functional information with extensive cross-references to more than 120 external databases. Besides amino acid sequence and a description, it also provides taxonomic data and citation information.

Registry entry: `uniprot` (MIR:00000005). Indexed for discovery only — the data is served by the resource itself, under its own terms of use.

**Source:** https://www.uniprot.org/

_This dataset is part of the Atlas demo catalogue. See the repository history for provenance._