1GSY:
reference: The three-dimensional structure of a class-Pi glutathione S-transferase complexed with glutathione: the active-site hydration provides insights into the reaction mechanism., Parraga A, Garcia-Saez I, Walsh SB, Mantle TJ, Coll M, Biochem J. 1998 Aug 1;333 ( Pt 3):811-6. PMID: 9677344

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