Figure 8
(a) Rigid bodies (yellow and blue ribbons) in WbdD556 identified by the RAPIDO webserver (Mosca & Schneider, 2008). Hinge regions are shown as red ribbons and the cofactors ATP and SAM as spheres. (b) Superposition of the 3.0 Å resolution (red) and 4.2 Å resolution (green) WbdD structures (Table 2) showing the twisting motion that occurs during crystal dehydration and pivots around the ATP-binding cleft. The superposition is based on the rigid body that comprises the methyltransferase and the N-lobe of the kinase domain [coloured yellow in (a)]. |