Fig. 2.

Ramachandran plot for the structures of the apo-forms of formate dehydrogenases from bacteria Pseudomonas sp.101 (A) (PDB2NAC) and Moraxella sp. C-1 (B) (PDB3FN4). Only one pair of angles ψ and φ is shown for MorFDH because the crystallographic cell of the latter enzyme contains only one enzyme subunit