Welcome to SIMAP.

SIMAP is a database containing the similarity space formed by about all amino-acid sequences from public databases and completely sequenced genomes.

You may find sequences and protein entries of interest by fulltext search which uses an index of proteins IDs, accession numbers and descriptions, and the Biothesaurus.
Starting from your query sequence you may find the nearest sequences in SIMAP. By searching parts of your query in a suffix array of all SIMAP sequences (generated by VMATCH), this search runs much faster than BLAST.

News:

• 2013, Apr 21: InterPro 41.0 and 42.0 integrated
  InterPro annotations have been upgraded to version 42.0 in the April 2013 release of SIMAP.
• 2012, Nov 30: InterPro 40.0 integrated
  InterPro annotations have been upgraded to version 40.0 in the November 2012 release of SIMAP.
• 2012, Sep 20: InterPro 39.0 integrated
  InterPro annotations have been upgraded to version 39.0 in the September 2012 release of SIMAP.
• 2012, July 15: InterPro 38.0 integrated
  InterPro annotations have been upgraded to version 38.0 in the July 2012 release of SIMAP.
• 2012, May 28: InterPro 37.0 integrated
  InterPro annotations have been upgraded to version 37.0 in the May 2012 release of SIMAP.