Peptide coverage of the human αIIbβ3 by mass spectrometry. Full sequence of integrin αIIb (top) and β3 (bottom) were obtained from the UniProt database. The signal peptides were colored in red, and the mature proteins were colored in black. Each underline indicates a peptide of integrin αIIb (top) or β3 (bottom) identified from the mass spectrometry study. Peptide coverage of integrin αIIb (top) and β3 (bottom) was highlighted in yellow.