Fig. 3. (A) Structure of MccB homodimer bound to product 4. One monomer is colored in gray and the other in pink and blue. (B) Coordinates of the MccB-4 complex superimposed on a difference Fourier map (Fobs – Fcalc) contoured at 2.5σ using phases from the final model with the coordinate of 4 removed prior to a round of simulated annealing refinement. (C) Close-up view of the N-formyl binding pocket of MccB.
