6BUI:
reference: Crystal structure of a membrane-bound O-acyltransferase., Ma D, Wang Z, Merrikh CN, Lang KS, Lu P, Li X, Merrikh H, Rao Z, Xu W, Nature. 2018 Oct;562(7726):286-290. doi: 10.1038/s41586-018-0568-2. Epub 2018 Oct, 3. PMID: 30283133

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