TABLE 2.

Identification of peptide cross-links between Tmod3 and G-actin

^a Cross-linked residues are highlighted in boldface type, and residue numbers based on full-length protein sequence without extra residues from cloning are shown in parentheses. When MS/MS spectra could not distinguish between adjacent candidate cross-link sites, both sites are highlighted.

^b z = charge state of precursors in MS scan.

^c Cross-linked peptide confirmed by the presence of expected precursor ion at correct retention time using an extracted ion chromatogram with a 5 ppm mass error window; no ms/ms spectra were triggered.