Welcome to PEP2PRO!

[April 21st, 2013] pep2pro has been updated to cover release 2013_04 of UniRef100.

Note: due to significant improvements in the PIR Peptide Match Service pep2pro is now deprecated for most use cases. The service will be maintained primarily to support mass spectrometry oriented queries (where Isoleucine and Leucine are considered equivalent).

[November 17th, 2010] pep2pro published (Proteomics) along with a short writeup.
[July 11th, 2010] pep2pro presented at ISMB2010 in Boston.

1. URLs for fast peptide lookup:

2. Form-based demos of pep2pro's capabilities:

3. Interesting statistics: