2PCV:
reference: Solution structure of an rRNA substrate bound to the pseudouridylation pocket of a box H/ACA snoRNA., Jin H, Loria JP, Moore PB, Mol Cell. 2007 Apr 27;26(2):205-15. PMID: 17466623

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