The abundance of N-terminal fragments starting from V21 (pV21–W33), S22 (pS22–W33), S23 (pS23–W33), and G24 (pG24–W33) along with three control peptides (Ctrl1, pH81–Y95; Ctrl2, pR106–L118; Ctrl3, pH113–L123) were measured by parallel reaction monitoring (PRM), an MS/MS-based targeted quantification...
ORGANISM(S): Homo Sapiens (human)