1R9G:
reference: Three-dimensional structure of YaaE from Bacillus subtilis, a glutaminase implicated in pyridoxal-5'-phosphate biosynthesis., Bauer JA, Bennett EM, Begley TP, Ealick SE, J Biol Chem 2004 Jan 23;279(4):2704-11. Epub 2003 Oct 28. PMID: 14585832

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