Figure 5
Potential NAD adduct in the active site of PaHSS molecule B. The atomic model of the PaHSS molecule (PDB entry 6y87 chain B) is depicted in ball-and-stick representation in two orientations in (a) and (b). The 2mFo − DFc map (black, 1σ) and the mFo − DFc map (green/red, ±4σ) are shown as mesh. The central, uninterpreted electron-density distribution could originate from a substitution at the nicotinamide ring. |