3ASA:
reference: The Structure of ll-Diaminopimelate Aminotransferase from Chlamydia trachomatis: Implications for Its Broad Substrate Specificity., Watanabe N, Clay MD, van Belkum MJ, Fan C, Vederas JC, James MN, J Mol Biol. 2011 Aug 19;411(3):649-60. Epub 2011 Jun 21. PMID: 21722650

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