4XBG:
reference: Crystallographic Identification of Lipid as an Integral Component of the Epitope of HIV Broadly Neutralizing Antibody 4E10., Irimia A, Sarkar A, Stanfield RL, Wilson IA, Immunity. 2016 Jan 19;44(1):21-31. doi: 10.1016/j.immuni.2015.12.001. Epub 2016, Jan 5. PMID: 26777395

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