2C1P:
reference: Crystal structures of an enantioselective fab-fragment in free and complex forms., Parkkinen T, Nevanen TK, Koivula A, Rouvinen J, J Mol Biol. 2006 Mar 24;357(2):471-80. Epub 2006 Jan 3. PMID: 16427081

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