3FGP:
reference: The C-terminal of CysM from Mycobacterium tuberculosis protects the aminoacrylate intermediate and is involved in sulfur donor selectivity., Gren D, Schnell R, Schneider G, FEBS Lett. 2009 Jan 22;583(2):330-6. Epub 2008 Dec 26. PMID: 19101553

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