5WLH:
reference: Guide-bound structures of an RNA-targeting A-cleaving CRISPR-Cas13a enzyme., Knott GJ, East-Seletsky A, Cofsky JC, Holton JM, Charles E, O'Connell MR, Doudna JA, Nat Struct Mol Biol. 2017 Sep 11. doi: 10.1038/nsmb.3466. PMID: 28892041

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