5W8S:
reference: Crystal structure of lipid A disaccharide synthase LpxB from Escherichia coli., Bohl TE, Shi K, Lee JK, Aihara H, Nat Commun. 2018 Jan 25;9(1):377. doi: 10.1038/s41467-017-02712-9. PMID: 29371662

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