4ID5:
reference: Detecting allosteric sites of HIV-1 reverse transcriptase by X-ray crystallographic fragment screening., Bauman JD, Patel D, Dharia C, Fromer M, Ahmed S, Frenkel Y, Eck JT, Ho W, Das K, Shatkin A, Arnold E, J Med Chem. 2013 Jan 23. PMID: 23342998

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