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. Author manuscript; available in PMC: 2015 Oct 7.
Published in final edited form as: Chem Soc Rev. 2014 Oct 7;43(19):6814–6838. doi: 10.1039/c3cs60467e

Figure 6.

Figure 6

X-ray crystallographic binding modes of dipeptide amide 8 bound to rat nNOS (A; PDB 1P6H) and bovine eNOS (B; PDB 1P6L). Polar interactions are shown as dashed lines. Note the tighter electrostatic interaction between the α-amine of 8 and Glu592 (in A) from the negative charge of Asp597 (4.9 Å away).