SnapShot: Class 1 CRISPR-Cas Systems
نویسندگان
چکیده
Class 1 CRISPR-Cas systems are characterized by effector modules consisting of multiple subunits. Class 1 systems comprise about 90% of all CRISPR-Cas loci identified in bacteria and archaea and can target both DNA and RNA.
منابع مشابه
SnapShot: Class 2 CRISPR-Cas Systems
Class 2 CRISPR-Cas systems are characterized by effector modules consisting of single, large, multidomain proteins that appear to have been derived from mobile genetic elements. Some Class 2 effector proteins, such as Cas9 and Cas12a (Cpf1), have been successfully repurposed for genome engineering.
متن کاملCRISPR-Cas: the effective immune systems in the prokaryotes
Approximately all sequenced archaeal and half of eubacterial genomes have some sort of adaptive immune system, which enables them to target and cleave invading foreign genetic elements by an RNAi-like pathway. CRISPR–Cas (clustered regularly interspaced short palindromic repeats–CRISPR-associated proteins) systems consist of the CRISPR loci with multiple copies of a short repeat sequence separa...
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متن کاملThe application and mechanism of CRISPR-Cas systems in the treatment of infectious diseases
Infectious diseases remain a global threat with many people annually contracting the epidemic diseases. Improved understanding of the pathogenesis of bacteria, viruses, fungi, and parasites, along with rapid diagnosis and treatment of human infections are essential to improving infectious diseases outcomes worldwide. In many genomic loci in bacteria and archea, termed Clustered Regularly Inters...
متن کاملDiscovery and Functional Characterization of Diverse Class 2 CRISPR-Cas Systems.
Microbial CRISPR-Cas systems are divided into Class 1, with multisubunit effector complexes, and Class 2, with single protein effectors. Currently, only two Class 2 effectors, Cas9 and Cpf1, are known. We describe here three distinct Class 2 CRISPR-Cas systems. The effectors of two of the identified systems, C2c1 and C2c3, contain RuvC-like endonuclease domains distantly related to Cpf1. The th...
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عنوان ژورنال:
- Cell
دوره 168 شماره
صفحات -
تاریخ انتشار 2017