4J0W:
reference: Structural and functional analysis of the U3 snoRNA binding protein Rrp9., Zhang L, Lin J, Ye K, RNA. 2013 May;19(5):701-11. doi: 10.1261/rna.037580.112. Epub 2013 Mar 18. PMID: 23509373

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