Figure 2. The AldDH structure (PDB 5JFN) with bound CoA and acylated Cys330.
(A) Surface representation of the Rps. palustris AldDH, which forms a tetramer (dimer of dimers). A top view of a dimer interface with CoA molecules bound in the active site clefts is shown. (B) Superposition of an Fo-Fc electron density simulated annealing omit map at 1.8 σ (green mesh) on refined CoA and S-propionylcysteine (Cys330) in the active site of the AldDH structure. (C) Close-up (from B) of the acylated Cys330.