3KFU:
reference: Crystal structure of a transfer-ribonucleoprotein particle that promotes asparagine formation., Blaise M, Bailly M, Frechin M, Behrens MA, Fischer F, Oliveira CL, Becker HD, Pedersen JS, Thirup S, Kern D, EMBO J. 2010 Sep 15;29(18):3118-29. Epub 2010 Aug 17. PMID: 20717102

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