Figure 6
TaB-derivative crystals of StyA1. Stereo representations of (a) the anomalous difference Fourier map of tantalum (orange mesh, contoured at 5[sigma]; 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 1[sigma]; 2.4 Å resolution) together with the C[alpha] trace of the final model in black are shown.  [article HTML]