2IUA:
reference: Structure and reactivity of LpxD, the N-acyltransferase of lipid A biosynthesis., Buetow L, Smith TK, Dawson A, Fyffe S, Hunter WN, Proc Natl Acad Sci U S A. 2007 Mar 13;104(11):4321-6. Epub 2007 Mar 5. PMID: 17360522

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