Sequest

Original author(s)Jimmy Eng, Ashley McCormack and John Yates
Operating systemWindows, Linux
TypeProtein identification
Licenseproprietary (algorithm subject to U.S. patents 6,017,693 and 5,538,897, and a European patent)
WebsiteThermo, Yates' Lab, UWPR

Sequest (often stylized as SEQUEST) is a tandem mass spectrometry data analysis program used for protein identification. Sequest identifies collections of tandem mass spectra to peptide sequences that have been generated from databases of protein sequences.