2CJG:
reference: Direct evidence for a glutamate switch necessary for substrate recognition: crystal structures of lysine epsilon-aminotransferase (Rv3290c) from Mycobacterium tuberculosis H37Rv., Mani Tripathi S, Ramachandran R, J Mol Biol. 2006 Oct 6;362(5):877-86. Epub 2006 Aug 11. PMID: 16950391

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