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. 2013 Aug 10;19(5):448–464. doi: 10.1089/ars.2012.4565

FIG. 6.

FIG. 6.

ESI-CID-MS-MS spectra of VEGFR2. (A) CID spectra of [M+3H]3+ m/z 473.90 from a tryptic digest of VEGFR2 in the absence of NaHS showing an S–S bond between Cys1045 and Cys1024. (B) CID spectra of [M+2H]2+ m/z 476.24 from a tryptic digest of VEGFR2 in the presence of dithiothreitol showing the β peptide containing Cys1045. (C) CID spectra of [M+2H]2+ m/z 483.25 from a tryptic digest of VEGFR2 in the presence of NaHS showing the β peptide containing Cys1045. CID, collision-induced dissociation; Cys_CAM, Carboxyamidomethyl cysteine; Cys_PAM, propionamide cysteine.