1TDT:
reference: Three-dimensional structure of tetrahydrodipicolinate N-succinyltransferase., Beaman TW, Binder DA, Blanchard JS, Roderick SL, Biochemistry 1997 Jan 21;36(3):489-94. PMID: 9012664

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