4LSN:
reference: Structure-Based Evaluation of C5 Derivatives in the Catechol Diether Series Targeting HIV-1 Reverse Transcriptase., Frey KM, Gray WT, Spasov KA, Bollini M, Gallardo-Macias R, Jorgensen WL, Anderson KS, Chem Biol Drug Des. 2013 Dec 2. doi: 10.1111/cbdd.12266. PMID: 24289305

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