Figure 6
TaB-derivative crystals of StyA1. Stereo representations of (a) the anomalous difference Fourier map of tantalum (orange mesh, contoured at 5σ; 2.4 Å resolution) at the TaB cluster binding site 1 (in stick representation) together with two adjacent protein molecules in ribbon representation and (b) the experimental electron-density map after solvent flattening and twofold NCS averaging calculated from SAD phases (blue mesh, contoured at 1σ; 2.4 Å resolution) together with the Cα trace of the final model in black are shown. |