Use of a designed peptide array to infer dissociation trends for nontryptic peptides in quadrupole ion trap and quadrupole time-of-flight mass spectrometry.

Observed peptide gas-phase fragmentation patterns are a complex function of many variables. To systematically probe this phenomenon, an array of 40 peptides was synthesized for study. The array of sequences was designed to hold certain variables (peptide length) constant and randomize or balance oth