2BKX:
reference: Structure and kinetics of a monomeric glucosamine 6-phosphate deaminase: missing link of the NagB superfamily?, Vincent F, Davies GJ, Brannigan JA, J Biol Chem. 2005 May 20;280(20):19649-55. Epub 2005 Mar 8. PMID: 15755726

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