Figure 6From: Crystallographic characterization of two novel crystal forms of human insulin induced by chaotropic agents and a shift in pHUrea binding site. The most commonly occupied binding site for the urea molecule in the C2urea and C2221urea structures. Hydrogen bonds are primarily directed towards the carbonyl oxygen GlnA5 but surrounding carbonyl oxygens from SerA9 and IleA10 are within reasonable distances. Marked distances are given in Ångström (Å).Back to article page