2DT9:
reference: Crystal structures of the regulatory subunit of Thr-sensitive aspartate kinase from Thermus thermophilus., Yoshida A, Tomita T, Kono H, Fushinobu S, Kuzuyama T, Nishiyama M, FEBS J. 2009 Jun;276(11):3124-36. Epub 2009 Apr 23. PMID: 19490113

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