We are sorry, but the page you requested is no longer available.
OMSSA was a tandem mass spectra search engine. This search engine is no longer available.
Due to budgetary constraints NCBI has discontinued OMSSA. Historical binaries are available from our ftp server ftp://ftp.ncbi.nih.gov/pub/lewisg/omssa/CURRENT/.
If you have any specific questions, please feel free to contact us at firstname.lastname@example.org.