3N6B:
reference: Role of zinc in isoform-selective inhibitor binding to neuronal nitric oxide synthase ., Delker SL, Xue F, Li H, Jamal J, Silverman RB, Poulos TL, Biochemistry. 2010 Dec 28;49(51):10803-10. Epub 2010 Dec 7. PMID: 21138269

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