3ZV2:
reference: Conformation-Sensing Antibodies Stabilize the Oxidized Form of PTP1B and Inhibit Its Phosphatase Activity., Haque A, Andersen JN, Salmeen A, Barford D, Tonks NK, Cell. 2011 Sep 30;147(1):185-98. PMID: 21962515

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