4M9C:
reference: Biochemical analysis and structure determination of bacterial acetyltransferases responsible for the biosynthesis of UDP-N,N'-diacetylbacillosamine., Morrison MJ, Imperiali B, J Biol Chem. 2013 Sep 24. PMID: 24064219

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