4DVT:
reference: Crystal Structures of HIV-1 gp120 Envelope Glycoprotein in Complex with NBD Analogues That Target the CD4-Binding Site., Kwon YD, Lalonde JM, Yang Y, Elban MA, Sugawara A, Courter JR, Jones DM, Smith AB 3rd, Debnath AK, Kwong PD, PLoS One. 2014 Jan 28;9(1):e85940. doi: 10.1371/journal.pone.0085940. eCollection, 2014. PMID: 24489681

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