1WNY:
reference: Structural basis for substrate recognition by the editing domain of isoleucyl-tRNA synthetase., Fukunaga R, Yokoyama S, J Mol Biol. 2006 Jun 16;359(4):901-12. Epub 2006 Apr 25. PMID: 16697013

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