1F0R:
reference: Crystal structures of human factor Xa complexed with potent inhibitors., Maignan S, Guilloteau JP, Pouzieux S, Choi-Sledeski YM, Becker MR, Klein SI, Ewing WR, Pauls HW, Spada AP, Mikol V, J Med Chem 2000 Aug 24;43(17):3226-32. PMID: 10966741

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