Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.

Protein domains and families

The task of assigning proteins to families makes use of a range of sources including protein family databases, sequence analysis tools, scientific literature and sequence similarity search tools.

UniProtKB/Swiss-Prot document: Sequence similarities: index
UniProtKB/Swiss-Prot document: Uncharacterized protein families
User manual: Family and Domains section
User manual: Sequence similarities
User manual: Domain
Family and domain databases

How is orthology established in UniProtKB/Swiss-Prot?
How is protein family membership assigned in UniProtKB?

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health