1DLB:
reference: Helical interactions in the HIV-1 gp41 core reveal structural basis for the inhibitory activity of gp41 peptides., Shu W, Liu J, Ji H, Radigen L, Jiang S, Lu M, Biochemistry 2000 Feb 22;39(7):1634-42. PMID: 10677212

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