4JDV:
reference: Structural basis for HIV-1 gp120 recognition by a germ-line version of a broadly neutralizing antibody., Scharf L, West AP Jr, Gao H, Lee T, Scheid JF, Nussenzweig MC, Bjorkman PJ, Diskin R, Proc Natl Acad Sci U S A. 2013 Apr 9;110(15):6049-54. doi:, 10.1073/pnas.1303682110. Epub 2013 Mar 22. PMID: 23524883

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