Figure 3
From: Cα-H···O=C hydrogen bonds contribute to the specificity of RGD cell-adhesion interactions
Fragments used in searches for non-bonded interactions in the Cambridge Structural Database [44]. Å 3.8 Å Cα···O distance cutoff was applied in all searches. A hydrogen atom was deemed to be in hydrogen bonding position if the angle Cα-H···O ≥ 90°. Separate searches were conducted for the bifurcated hydrogen bond (both angles ≥ 90°), single Cα-H···O=C hydrogen bond (one angle ≥ 90°, the other < 90°) and no hydrogen bonds (both angles < 90°).