Figure 2
Validation of the binding mode of acivicin toward B. subtilis GGT. (a) Stereoview of the unbiased Fo − Fc map for the acivicin adduct contoured at 2.0σ (green). This map was obtained at the final stage of the refinement for the GGT moiety lacking Thr403 and the acivicin molecule. (b) The bound acivicin model assuming that acivicin is bound to the C3 atom with sp3 hybridization. (c) The sp2-hybridized model. The 2Fo − Fc map at 1.0σ (blue) and Fo − Fc map at 3.0σ (red) are overlaid on the stick models of the acivicin adduct in the GGT structure. |