110813     PEP: A Peptide Sequencing Program  Version: June 1985
 
Submitted by: Charles Hamm, National Institute of Envir. Health,
Research Triangle Park, NC
 
Operating System: RSX-11M V4.1C  Source Language: FORTRAN 77  Memory
Required: 19KW  Software Required: FORTRAN 77 compiler or resident FCS
library  Keywords: Scientific Applications
 
Abstract: This program is intended to help researchers find possible
constructs of peptides given the mass spectrum as generated
by a fast-atom bombardment (FAB) tandem mass spectrometer and
the suspected composition of the peptide.  The program
compares all permutations of a given combination of amino
acids forming a peptide to the spectrum of the actual
peptide.  The comparsion is made by mathematically breaking
each permutation at each of its possible cleavage points and
counting the number of ion fragments that have a
corresponding mass in the spectrum list.  Only the
permutations that have the highest number of matched
fragments are considered candidates for the actual peptide
and are listed in an output file.
 
Media (Service Charge Code): One RX01 Diskette (KA)  Format: FILES-11,
600' Magnetic Tape (MA)  Format: FILES-11