Cas13d is a class 2 type VI-D CRISPR-Cas RNA-guided RNase. Here the authors present the high-resolution crystal structure of the uncultured Ruminococcus sp. Cas13d (UrCas13d)-crRNA complex and by combining structural, mutational and biochemical studies provide mechanistic insights into the CRISPR-Cas13d system.
- Bo Zhang
- Yangmiao Ye
- Songying Ouyang