1OYQ:
reference: Structural basis for inhibition promiscuity of dual specific thrombin and factor Xa blood coagulation inhibitors., Nar H, Bauer M, Schmid A, Stassen JM, Wienen W, Priepke HW, Kauffmann IK, Ries UJ, Hauel NH, Structure (Camb) 2001 Jan 10;9(1):29-37. PMID: 11342132

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