Results 11 to 20 of about 22,577 (244)

Development and Application of CRISPR/Cas in Microbial Biotechnology

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
The clustered regularly interspaced short palindromic repeats (CRISPR)-associated (Cas) system has been rapidly developed as versatile genomic engineering tools with high efficiency, accuracy and flexibility, and has revolutionized traditional methods ...
Wentao Ding   +3 more
doaj   +1 more source

Target RNA-guided protease activity in type III-E CRISPR–Cas system

open access: yesNucleic Acids Research, 2022
Abstract The type III-E CRISPR–Cas systems are newly identified adaptive immune systems in prokaryotes that use a single Cas7–11 protein to specifically cleave target RNA. Cas7–11 could associate with Csx29, a putative caspase-like protein encoded by the gene frequently found in the type III-E loci, suggesting a functional linkage ...
Xiaoshen Wang   +11 more
openaire   +2 more sources

Cpf1 Is a Single RNA-Guided Endonuclease of a Class 2 CRISPR-Cas System [PDF]

open access: yesCell, 2015
The microbial adaptive immune system CRISPR mediates defense against foreign genetic elements through two classes of RNA-guided nuclease effectors. Class 1 effectors utilize multi-protein complexes, whereas class 2 effectors rely on single-component effector proteins such as the well-characterized Cas9.
Zetsche, Bernd   +11 more
openaire   +4 more sources

Dynamic observations of CRISPR-Cas target recognition and cleavage heterogeneities

open access: yesNanophotonics, 2022
CRISPR-Cas systems (clustered regularly interspaced short palindromic repeats) have shown great potential as efficient gene editing tools in disease therapeutics.
Zhang Zhijia   +12 more
doaj   +1 more source

Structure of the Saccharolobus solfataricus type III-D CRISPR effector

open access: yesCurrent Research in Structural Biology, 2023
CRISPR-Cas is a prokaryotic adaptive immune system, classified into six different types, each characterised by a signature protein. Type III systems, classified based on the presence of a Cas10 subunit, are rather diverse multi-subunit assemblies with a ...
Giuseppe Cannone   +4 more
doaj   +1 more source

Computational approaches for effective CRISPR guide RNA design and evaluation

open access: yesComputational and Structural Biotechnology Journal, 2020
The Clustered Regularly Interspaced Short Palindromic Repeat (CRISPR)/ CRISPR-associated (Cas) system has emerged as the main technology for gene editing. Successful editing by CRISPR requires an appropriate Cas protein and guide RNA.
Guanqing Liu, Yong Zhang, Tao Zhang
doaj   +1 more source

Endogenous CRISPR-Cas System-Based Genome Editing and Antimicrobials: Review and Prospects

open access: yesFrontiers in Microbiology, 2019
CRISPR-Cas systems adapt “memories” via spacers from viruses and plasmids to develop adaptive immunity against mobile genetic elements. Mature CRISPR RNAs guide CRISPR-associated nucleases to site-specifically cleave target DNA or RNA, providing an ...
Yingjun Li, Nan Peng
doaj   +1 more source

Type I-E CRISPR-cas systems discriminate target from non-target DNA through base pairing-independent PAM recognition. [PDF]

open access: yesPLoS Genetics, 2013
Discriminating self and non-self is a universal requirement of immune systems. Adaptive immune systems in prokaryotes are centered around repetitive loci called CRISPRs (clustered regularly interspaced short palindromic repeat), into which invader DNA ...
Edze R Westra   +6 more
doaj   +1 more source

A Type IV-A CRISPR-Cas System in Pseudomonas aeruginosa Mediates RNA-Guided Plasmid Interference In Vivo [PDF]

open access: yesThe CRISPR Journal, 2019
Bacteria and archaea use CRISPR-Cas adaptive immune systems to destroy complementary nucleic acids using RNAs derived from CRISPR loci. Here, we provide the first functional evidence for type IV CRISPR-Cas, demonstrating that the system from Pseudomonas aeruginosa strain PA83 mediates RNA ...
Valerie M, Crowley   +6 more
openaire   +2 more sources

CRISPR-Cas12a exploits R-loop asymmetry to form double-strand breaks

open access: yeseLife, 2020
Type V CRISPR-Cas interference proteins use a single RuvC active site to make RNA-guided breaks in double-stranded DNA substrates, an activity essential for both bacterial immunity and genome editing.
Joshua C Cofsky   +5 more
doaj   +1 more source

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