2ZAE:
reference: Structure of an archaeal homolog of the human protein complex Rpp21-Rpp29 that is a key core component for the assembly of active ribonuclease P., Honda T, Kakuta Y, Kimura K, Saho J, Kimura M, J Mol Biol. 2008 Dec 19;384(3):652-62. Epub 2008 Oct 2. PMID: 18929577

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