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We are deeply saddened by the passing of Amos Bairoch (1957–2025), the creator of PROSITE. We wish to dedicate our latest paper, published shortly before his death, to him. He will always be a source of inspiration to us.
Our deepest condolences go out to his family and friends, and to all those who had the privilege of working with him. Rest in peace, Amos. Your work will live on long after you are gone.
Amos Bairoch

Database of protein domains, families and functional sites

coronoavirus
SARS-CoV-2 relevant PROSITE motifs

PROSITE consists of documentation entries describing protein domains, families and functional sites as well as associated patterns and profiles to identify them [More... / References / Commercial users ].
PROSITE is complemented by ProRule , a collection of rules based on profiles and patterns, which increases the discriminatory power of profiles and patterns by providing additional information about functionally and/or structurally critical amino acids [More...].


Release 2025_04 of 15-Oct-2025 contains 1956 documentation entries, 1311 patterns, 1403 profiles and 1432 ProRule.
Search PROSITE
e.g. PDOC00022, PS50089, SH3, zinc finger
add wildcard '*'
Browse PROSITE
Quick Scan mode of ScanProsite
Quickly find matches of your protein sequences to PROSITE signatures (max. 10 sequences). [?] Examples

For UniProtKB/TrEMBL accessions/identifiers, only those of entries belonging to reference proteomes are accepted.

Exclude motifs with a high probability of occurrence from the scan

For more scanning options go to ScanProsite
Other tools
PRATT
allows to interactively generate conserved patterns from a series of unaligned proteins.
MyDomains - Image Creator
allows to generate custom domain figures.
scanview