Fig. 2
From: APLP1 as a cerebrospinal fluid biomarker for γ-secretase modulator treatment
Fragment ion mass spectra of APLP1 peptides. Fragment mass spectra generated by tandem mass spectrometry of the peptides a APLP1β17 and b APLP1β28 immunoprecipitated from human cerebrospinal fluid. Shown are the fragment ions annotated as a, b and y ions. The fragment spectra were used for identification and annotation by searching an in-house designated APLP1 database using a Mascot Daemon server