Figure 3
Structure of LfCE15C. (a) Overall structure (chain C) using the same colour scheme as in Fig. 1 . The active-site residues Ser200, Arg201, Glu223 and His336 and glycosylation at Asn241 are shown as sticks. (b) Active site of LfCE15C overlaid with Cip2 (PDB entry 3pic, grey) with the residues from LfCE15C labelled. One of the disulfide bridges is also shown. (c, d) Electron density at (c) the glycosylation site and (d) the active site of LfCE15C chain C showing the 2Fobs − Fcalc electron density contoured at 1.0σ. |