Francisella novicida CRISPR-Cas Systems Can Functionally Complement Each Other in DNA Defense while Providing Target Flexibility
نویسندگان
چکیده
منابع مشابه
CRISPR-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...
متن کاملKeeping CRISPR/Cas on-Target.
CRISPR/Cas, a microbial adaptive immune system, has recently been reshaped as a versatile genome editing approach, endowing genome engineering with high efficiency and robustness. The DNA endonuclease Cas, a component of CRISPR system, is directed to specific target within genomes by guide RNA (gRNA) and performs gene editing function. However, the system is still in its infancy and facing enor...
متن کاملAssembly of Francisella novicida Cpf1 endonuclease in complex with guide RNA and target DNA
Bacteria and archaea use the CRISPR-Cas system as an adaptive response against infection by foreign nucleic acids. Owing to its remarkable flexibility, this mechanism has been harnessed and adopted as a powerful tool for genome editing. The CRISPR-Cas system includes two classes that are subdivided into six types and 19 subtypes according to conservation of the cas gene and loci organization. R...
متن کاملAdaptation in CRISPR-Cas Systems.
Clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated (Cas) proteins constitute an adaptive immune system in prokaryotes. The system preserves memories of prior infections by integrating short segments of foreign DNA, termed spacers, into the CRISPR array in a process termed adaptation. During the past 3 years, significant progress has been made on the genetic...
متن کاملCRISPR/Cas systems in archaea
CRISPR (Clustered, Regularly, Interspaced, Short, Palindromic Repeats) loci have been shown to provide prokaryotes with an adaptive immunity against viruses and plasmids. CRISPR arrays are transcribed and processed into small CRISPR RNA molecules, which base-pair with invading DNA or RNA and lead to its degradation by CRISPR-associated (Cas) protein complexes. New spacers can be acquired by act...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 2020
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.00670-19