The DOI matches its Crossref record; 102 of the 102 references it cites were found in a registry or an index.
Molecular Mechanisms of RNA Targeting by Cas13-containing Type VI CRISPR–Cas Systems
Abstract
Prokaryotic adaptive immune systems use Clustered Regularly Interspaced Short Palindromic Repeats (CRISPRs) and CRISPR-associated (Cas) proteins for RNA-guided cleavage of foreign genetic elements. The focus of this review, Type VI CRISPR-Cas systems, contain a single protein, Cas13 (formerly C2c2) that when assembled with a CRISPR RNA (crRNA) forms a crRNA-guided RNA-targeting effector complex. Type VI CRISPR-Cas systems can be divided into four subtypes (A-D) based on Cas13 phylogeny. All Cas13 proteins studied to date possess two enzymatically distinct ribonuclease activities that are required for optimal interference. One RNase is responsible for pre-crRNA processing to form mature Type VI interference complexes, while the other RNase activity provided by the two Higher Eukaryotes and Prokaryotes Nucleotide-binding (HEPN) domains, is required for degradation of target-RNA during viral interference. In this review, I will compare and contrast what is known about the molecular architecture and behavior of Type VI (A-D) CRISPR-Cas13 interference complexes, how this allows them to carry out their RNA-targeting function, how Type VI accessory proteins are able to modulate Cas13 activity, and how together all of these features have led to the rapid development of a range of RNA-targeting applications. Throughout I will also discuss some of the outstanding questions regarding Cas13's molecular behavior, and its role in bacterial adaptive immunity and RNA-targeting applications.
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Metadata
- Authors
- O'Connell, M. R.
- Venue
- Journal of Molecular Biology
- Publisher
- Elsevier BV
- Published
- 2019-01
- Volume
- 431
- Issue
- 1
- Pages
- 66-87
- ISSN
- 0022-2836 (ISSN-L)
- OpenAlex
- W2809070871
- Cited by
- 346
- References
- 102
- FWCI
- 8.95
- Type
- journal article
- Language
- en
- Open access
- closed
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