2JUC:
reference: Solution structure of the yeast URN1 splicing factor FF domain: Comparative analysis of charge distributions in FF domain structures-FFs and SURPs, two domains with a similar fold., Bonet R, Ramirez-Espain X, Macias MJ, Proteins. 2008 Jun 5;. PMID: 18536009

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