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Viral Diversity Threshold for Adaptive Immunity in Prokaryotes [PDF]

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   +3 more sources

Occurrence and Diversity of CRISPR-Cas Systems in the Genus Bifidobacterium. [PDF]

open access: yesPLoS ONE, 2015
CRISPR-Cas systems constitute adaptive immune systems for antiviral defense in bacteria. We investigated the occurrence and diversity of CRISPR-Cas systems in 48 Bifidobacterium genomes to gain insights into the diversity and co-evolution of CRISPR-Cas ...
Alexandra E Briner   +9 more
doaj   +3 more sources

CRISPR/Cas-based nucleic acid detection strategies: Trends and challenges [PDF]

open access: goldHeliyon
CRISPR/Cas systems have become integral parts of nucleic acid detection apparatus and biosensors. Various CRISPR/Cas systems such as CRISPR/Cas9, CRISPR/Cas12, CRISPR/Cas13, CRISPR/Cas14 and CRISPR/Cas3 utilize different mechanisms to detect or ...
Jian Zhou   +3 more
doaj   +2 more sources

Exploiting CRISPR-Cas to manipulate Enterococcus faecalis populations

open access: goldeLife, 2017
CRISPR-Cas provides a barrier to horizontal gene transfer in prokaryotes. It was previously observed that functional CRISPR-Cas systems are absent from multidrug-resistant (MDR) Enterococcus faecalis, which only possess an orphan CRISPR locus, termed ...
Karthik Hullahalli   +2 more
doaj   +2 more sources

Discovery of Diverse CRISPR-Cas Systems and Expansion of the Genome Engineering Toolbox [PDF]

open access: greenBiochemistry, 2023
CRISPR systems mediate adaptive immunity in bacteria and archaea through diverse effector mechanisms and have been repurposed for versatile applications in therapeutics and diagnostics thanks to their facile reprogramming with RNA guides.
Eugene V. Koonin   +2 more
openalex   +2 more sources

Functional Coupling and Evolutionary Relationships Between Toxin–Antitoxin Systems and CRISPR-Cas Systems [PDF]

open access: yesToxins
Bacteria encode a broad range of survival and defence systems, including CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)-Cas systems, restriction-modification systems, and toxin–antitoxin (TA) systems, which are involved in bacterial ...
Yibo Meng, Jiyun Chen, Liang Liu
doaj   +2 more sources

CRISPR/Cas Technology for the Diagnosis of Animal Infectious Diseases [PDF]

open access: yesMicroorganisms
Increasingly complex epidemics of animal infectious diseases have emerged as a major risk to livestock production and human health. However, current detection methods for animal infectious diseases suffer from shortcomings such as insufficient ...
Shuling Meng   +5 more
doaj   +2 more sources

CASPredict: a web service for identifying Cas proteins [PDF]

open access: yesPeerJ, 2021
Clustered regularly interspaced short palindromic repeats (CRISPR) and their associated (Cas) proteins constitute the CRISPR-Cas systems, which play a key role in prokaryote adaptive immune system against invasive foreign elements.
Shanshan Yang, Jian Huang, Bifang He
doaj   +2 more sources

Phylogenetic Distribution of CRISPR-Cas Systems in Staphylococcus lugdunensis

open access: yesMicrobiology Spectrum, 2021
Clustered regularly interspaced short palindromic repeats (CRISPRs) and CRISPR-associated (Cas) genes (CRISPR-Cas) are present in many bacterial genomes with functions beyond adaptive immunity.
Cheng-Yen Kao   +4 more
doaj   +1 more source

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

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