2JPX:
reference: Conformational changes induced by a single amino acid substitution in the trans-membrane domain of Vpu: implications for HIV-1 susceptibility to channel blocking drugs., Park SH, Opella SJ, Protein Sci. 2007 Oct;16(10):2205-15. Epub 2007 Aug 31. PMID: 17766368

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