1JOA:
reference: Structure of the native cysteine-sulfenic acid redox center of enterococcal NADH peroxidase refined at 2.8 A resolution., Yeh JI, Claiborne A, Hol WG, Biochemistry 1996 Aug 6;35(31):9951-7. PMID: 8756456

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