Figure 4.
Overlay of CpIMPDH structures with 54 (violet-blue; PDB ID code 4IXH) and C64 (PDB ID code 3KHJ).10b IMP, 54, C64 and the interaction residues are shown as sticks. A water molecule is shown as a red sphere and hydrogen bonding interactions are shown as blue dashed lines. An apostrophe denotes a residue from the adjacent monomer.