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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 4.

Figure 4

Residue differences among three human NOS isoforms [n: nNOS (green; based on homology model), i: iNOS (cyan; PDB 4NOS), e: eNOS (purple; PDB 3NOS)]. Note that in rat nNOS, His342 is Leu337.