3VVM:
reference: Crystallographic study to determine the substrate specificity on an L-serine-acetylating enzyme found in the D-cycloserine biosynthetic pathway., Oda K, Matoba Y, Kumagai T, Noda M, Sugiyama M, J Bacteriol. 2013 Feb 8. PMID: 23396912

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