Table 3. MALDI TOF/TOF fragmentation of C201-containing tryptic peptide NKTEVDIYNSDPLICR (187–202).

Observed [M+H]+	Modification	y-5 Fragment	Observed m/z fragment	Calculated m/z fragment	Error (ppm)
1879.7920	None	PLICR	601.3415	601.3490	−12.5
1936.8920	CAM	PLICR	658.3679	658.3705	−3.95
2017.9983	DMD	PLICR	739.4206	739.4170	4.87

Related MS/MS spectra are reported in the Supplementary Information (Fig. S2).