2HHK:
reference: Brominated Lipids Identify Lipid Binding Sites on the Surface of the Reaction Center from Rhodobacter sphaeroides., Roszak AW, Gardiner AT, Isaacs NW, Cogdell RJ, Biochemistry. 2007 Mar 20;46(11):2909-16. Epub 2007 Feb 23. PMID: 17315985

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