1H6R:
reference: Shedding light on disulfide bond formation: engineering a redox switch in green fluorescent protein., Ostergaard H, Henriksen A, Hansen FG, Winther JR, EMBO J 2001 Nov 1;20(21):5853-62. PMID: 11689426

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