3LQA:
reference: Structure of a clade C HIV-1 gp120 bound to CD4 and CD4-induced antibody reveals anti-CD4 polyreactivity., Diskin R, Marcovecchio PM, Bjorkman PJ, Nat Struct Mol Biol. 2010 May;17(5):608-13. Epub 2010 Mar 31. PMID: 20357769

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