Figure 2
Structures of bovine chymosin (a) and camel chymosin variant 2 (b). The active-site residues and activated water molecule are shown in red and the N-terminal residues up to and including Tyr16 are shown in magenta. The experimentally verified glycosylation sites and N-acetylglucosamine are shown in yellow and the chloride ions are shown as green spheres; stick models are used for sulfate ions and glycerol. |