CRISPR–Cas: Complex Functional Networks and Multiple Roles beyond Adaptive Immunity
| Autor: | Kira S. Makarova, Guilhem Faure, Eugene V. Koonin |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
DNA
Bacterial Transposable element DNA Repair Gene Transfer Horizontal DNA repair Computational biology Adaptive Immunity Biology Plasmid maintenance 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Structural Biology CRISPR Clustered Regularly Interspaced Short Palindromic Repeats Molecular Biology 030304 developmental biology 0303 health sciences Bacteria Transposon integration Acquired immune system Archaea chemistry Horizontal gene transfer DNA Transposable Elements CRISPR-Cas Systems 030217 neurology & neurosurgery DNA Plasmids Signal Transduction |
| Zdroj: | Journal of Molecular Biology. 431:3-20 |
| ISSN: | 0022-2836 |
| DOI: | 10.1016/j.jmb.2018.08.030 |
| Popis: | CRISPR–Cas is a prokaryotic adaptive immune system that functions by incorporating fragments of foreign DNA into CRISPR arrays. The arrays containing spacers derived from foreign DNA are transcribed, and the transcripts are processed to generate spacer-containing mature CRISPR-RNAs that are employed as guides to specifically recognize and cleave the DNA or RNA of the cognate parasitic genetic elements. The CRISPR–Cas systems show remarkable complexity and diversity of molecular organization and appear to be involved in various cellular functions that are distinct from, even if connected to, adaptive immunity. In this review, we discuss some of such functional links of CRISPR–Cas systems including their effect on horizontal gene transfer that can be either inhibitory or stimulatory, connections between CRISPR–Cas and DNA repair systems as well as programmed cell death and signal transduction mechanisms, and potential role of CRISPR–Cas in transposon integration and plasmid maintenance. The interplay between the primary function of CRISPR–Cas as an adaptive immunity mechanism and these other roles defines the richness of the biological effects of these systems and affects their spread among bacteria and archaea. |
| Databáze: | OpenAIRE |
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