3BM5:
reference: Crystal structure of native O-acetyl-serine sulfhydrylase from Entamoeba histolytica and its complex with cysteine: Structural evidence for cysteine binding and lack of interactions with serine acetyl transferase., Chinthalapudi K, Kumar M, Kumar S, Jain S, Alam N, Gourinath S, Proteins. 2008 Mar 18;. PMID: 18350570

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