Service Announcement

We will be carrying out essential maintenance on our service infrastructure on Tuesday 24th July between 7am to 5pm (BST). You may experience slow response from some services during this period. Apologies for any inconvenience caused. If you have any concerns, please contact us via support.

Protein Similarity Search

This tool provides sequence similarity searching against protein databases using the FASTA suite of programs. FASTA provides a heuristic search with a protein query. FASTX and FASTY translate a DNA query. Optimal searches are available with SSEARCH (local), GGSEARCH (global) and GLSEARCH (global query, local database).

STEP 1 - Select your databases
    • UniProtKB Taxonomic Subsets
    • UniProt Clusters
    • Patents
    • Structures
    • Other Protein Databases
STEP 2 - Enter your input sequence

a sequence in any supported format:

a file:

STEP 3 - Set your parameters
STEP 4 - Submit your job
(Tick this box if you want to be notified by email when the results are available)
If available, the title will be included in the subject of the notification email and can be used as a way to identify your analysis

If you plan to use these services during a course please contact us.