Sequence coverage obtained for Aα, Bβ, and γ chain in-gel trypsin digests of biotinylated bovine fibrinogen. Residues that were found in peptides recovered after the trypsin digests are represented with thick lines, while residues that were not found are represented with thin lines. Locations of important binding motifs are indicated. Sequence coverages of 69%, 68%, and 61% were obtained for the Aα, Bβ, and γ chains, respectively.