1N9W:
reference: Non-discriminating and discriminating aspartyl-tRNA synthetases differ in the anticodon-binding domain., Charron C, Roy H, Blaise M, Giege R, Kern D, EMBO J 2003 Apr 1;22(7):1632-43. PMID: 12660169

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