1P6C:
reference: Enhanced degradation of chemical warfare agents through molecular engineering of the phosphotriesterase active site., Hill CM, Li WS, Thoden JB, Holden HM, Raushel FM, J Am Chem Soc. 2003 Jul 30;125(30):8990-1. PMID: 15369336

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