Results 21 to 30 of about 38,793 (285)

Type I CRISPR-Cas-mediated microbial gene editing and regulation

open access: yesAIMS Microbiology, 2023
There are six major types of CRISPR-Cas systems that provide adaptive immunity in bacteria and archaea against invasive genetic elements. The discovery of CRISPR-Cas systems has revolutionized the field of genetics in many organisms.
Zeling Xu   +4 more
doaj   +1 more source

CRISPR-Cas systems in multicellular cyanobacteria [PDF]

open access: yesRNA Biology, 2018
Novel CRISPR-Cas systems possess substantial potential for genome editing and manipulation of gene expression. The types and numbers of CRISPR-Cas systems vary substantially between different organisms. Some filamentous cyanobacteria harbor > 40 different putative CRISPR repeat-spacer cassettes, while the number of cas gene instances is much lower ...
Shengwei Hou   +6 more
openaire   +4 more sources

An Endogenous Staphylococcus aureus CRISPR-Cas System Limits Phage Proliferation and Is Efficiently Excised from the Genome as Part of the SCCmec Cassette

open access: yesMicrobiology Spectrum, 2023
CRISPR-Cas is an adaptive immune system that allows bacteria to inactivate mobile genetic elements. Approximately 50% of bacteria harbor CRISPR-Cas; however, in the human pathogen Staphylococcus aureus, CRISPR-Cas loci are less common and often studied ...
Kasper Mikkelsen   +11 more
doaj   +1 more source

Application of different types of CRISPR/Cas-based systems in bacteria

open access: yesMicrobial Cell Factories, 2020
As important genome editing tools, CRISPR/Cas systems, especially those based on type II Cas9 and type V Cas12a, are widely used in genetic and metabolic engineering of bacteria.
Zhenquan Liu   +4 more
doaj   +1 more source

Optimization of CRISPR–Cas system for clinical cancer therapy

open access: yesBioengineering & Translational Medicine, 2023
Cancer is a genetic disease caused by alterations in genome and epigenome and is one of the leading causes for death worldwide. The exploration of disease development and therapeutic strategies at the genetic level have become the key to the treatment of
Xiang Meng   +7 more
doaj   +1 more source

CRISPR-Cas systems in Proteus mirabilis

open access: yesInfection, Genetics and Evolution, 2021
The Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) is a bacterial defense mechanism against bacteriophages composed of two different parts: the CRISPR array and the Cas genes. The spacer acquisition is done by the adaptation module consisting of the hallmark Cas1 Cas2 proteins, which inserts new spacers into the CRISPR array.
Mahnaz Shafaei, Fallah   +3 more
openaire   +2 more sources

Using CRISPR-Cas systems as antimicrobials [PDF]

open access: yesCurrent Opinion in Microbiology, 2017
Although CRISPR-Cas systems naturally evolved to provide adaptive immunity in bacteria and archaea, Cas nucleases can be co-opted to target chromosomal sequences rather than invasive genetic elements. Although genome editing is the primary outcome of self-targeting using CRISPR-based technologies in eukaryotes, self-targeting by CRISPR is typically ...
Bikard, David, Barrangou, Rodolphe
openaire   +3 more sources

A global comprehensive study of the distribution of type I-E and type I-E* CRISPR-Cas systems in Klebsiella pneumoniae

open access: yesIndian Journal of Community Medicine, 2023
Background: The CRISPR-Cas (clustered regularly interspaced short palindromic repeats–CRISPR-associated proteins) systems are the short DNA sequences and RNA-dependent nuclease involved in the adaptive immunity in bacteria and archaea. The type of CRISPR-
Anand Babu Kannadasan   +2 more
doaj   +1 more source

Viral Diversity Threshold for Adaptive Immunity in Prokaryotes

open access: yesmBio, 2012
Bacteria and archaea face continual onslaughts of rapidly diversifying viruses and plasmids. Many prokaryotes maintain adaptive immune systems known as clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated genes (Cas ...
Ariel D. Weinberger   +4 more
doaj   +1 more source

Research advances on pathogenic nucleic acid detection technology based on CRIPSR/Cas system

open access: yes浙江大学学报. 农业与生命科学版, 2023
Clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein (Cas) (CRISPR/Cas) system, an ancient bacterial and archaeal immune system, has rapidly developed into a popular gene-editing tool, which largely promotes the ...
LI Hongzhao   +4 more
doaj   +1 more source

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