Figure 3
Stereodiagram of the N47A active sites. (a) The active sites of chains A and B are shown. The electron density shows that the chain is processed. (b) The active site of the unprocessed monomer, chain C. The electron density between Ser52 and Ser53 is continuous and the side-chain density is also apparent for both residues. In all panels residues marked with an asterisk are from a second protomer. |