| 1TW7: reference: "Wide-open" 1.3 A structure of a multidrug-resistant HIV-1 protease as a drug target., Martin P, Vickrey JF, Proteasa G, Jimenez YL, Wawrzak Z, Winters MA, Merigan TC, Kovari LC, Structure. 2005 Dec;13(12):1887-95. PMID: 16338417 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).