3RID:
reference: Chain termini cross-talk in the swapping process of bovine pancreatic ribonuclease., Merlino A, Picone D, Ercole C, Balsamo A, Sica F, Biochimie. 2012 Jan 17. PMID: 22273774

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