Figure 3
Cartoon and stick depiction of the active site. Residues of one monomer are coloured in green; residues of the other monomer are coloured in blue. The magnesium (dark grey) and water (dark blue) molecules are represented as spheres. The TPP for the green chain is shown as a stick model and coloured by atom. Hydrogen bonds are depicted as magenta dotted lines. The map shown around TPP and magnesium is a simulated-annealing composite OMIT map contoured at 1.5σ. |