InterPro

InterPro is a database of protein families, domains and functional sites in which identifiable features found in known proteins can be applied to unknown protein sequences.

The database is available for text- and sequence-based searches via a webserver (http://www.ebi.ac.uk/interpro), and for download by anonymous FTP (ftp://ftp.ebi.ac.uk/pub/databases/interpro).

To cite a particular InterPro article in Wikipedia, use the template of the form, where IPRxxxxxx is an InterPro accession number, for instance.