L-659 877

L-659877 (Cyclo(Gln-Trp-Phe-Gly-Leu-Met)) is a compound used to study the chemical properties of peptide fragments in collision-induced dissociation. A series of experiments were conducted to study the structural changes of b-fragment ions of different lengths in collision-induced dissociation.

[1] Effect of peptide fragment size on the propensity of cyclization in collision-induced dissociation: oligoglycine b(2)-b(8) DOI:10.1021/ja9030837