6IFN:
reference: Structure Studies of the CRISPR-Csm Complex Reveal Mechanism of Co-transcriptional Interference., You L, Ma J, Wang J, Artamonova D, Wang M, Liu L, Xiang H, Severinov K, Zhang X, Wang Y, Cell. 2018 Nov 26. pii: S0092-8674(18)31451-X. doi: 10.1016/j.cell.2018.10.052. PMID: 30503210

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