3HAY:
reference: Structural mechanism of substrate RNA recruitment in H/ACA RNA-guided pseudouridine synthase., Duan J, Li L, Lu J, Wang W, Ye K, Mol Cell. 2009 May 14;34(4):427-39. PMID: 19481523

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