3IAB:
reference: Eukaryotic ribonucleases P/MRP: the crystal structure of the P3 domain., Perederina A, Esakova O, Quan C, Khanova E, Krasilnikov AS, EMBO J. 2010 Jan 14. PMID: 20075859

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