4JSM:
reference: In search of potent and selective inhibitors of neuronal nitric oxide synthase with more simple structures., Jing Q, Li H, Fang J, Roman LJ, Martasek P, Poulos TL, Silverman RB, Bioorg Med Chem. 2013 Jun 15. pii: S0968-0896(13)00545-2. doi:, 10.1016/j.bmc.2013.06.014. PMID: 23867386

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).