2WTE:
reference: The structure of the CRISPR-associated protein Csa3 provides insight into the regulation of the CRISPR/Cas system., Lintner NG, Frankel KA, Tsutakawa SE, Alsbury DL, Copie V, Young MJ, Tainer JA, Lawrence CM, J Mol Biol. 2011 Jan 28;405(4):939-55. Epub 2010 Nov 18. PMID: 21093452

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