3OM2:
reference: Polysaccharide Synthesis of the Levansucrase SacB from Bacillus megaterium Is Controlled by Distinct Surface Motifs., Strube CP, Homann A, Gamer M, Jahn D, Seibel J, Heinz DW, J Biol Chem. 2011 May 20;286(20):17593-600. Epub 2011 Mar 25. PMID: 21454585

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