| 3HAT: reference: Active-site mimetic inhibition of thrombin., Mathews II, Tulinsky A, Acta Crystallogr D Biol Crystallogr. 1995 Jul 1;51(Pt 4):550-9. PMID: 15299843 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).