Results 41 to 50 of about 717,978 (310)

New CRISPR-Cas systems discovered [PDF]

Cell Research, 2017
In bacteria and archaea, CRISPR-Cas adaptive immune systems utilize RNA-guided endonucleases to defend against invasion by foreign nucleic acids of bacteriophage, virus and plasmid origin. In a recent paper published in Nature, Burstein et al. identified the first Cas9 protein in uncultivated archaea and two novel CRISPR-CasX and CRISPR-CasY systems in
Dinshaw J. Patel, Hui Yang
openaire   +3 more sources

CRISPR-Cas in Acinetobacter baumannii Contributes to Antibiotic Susceptibility by Targeting Endogenous AbaI

Microbiology Spectrum, 2022
Acinetobacter baumannii is a well-known human opportunistic pathogen in nosocomial infections, and the emergence of multidrug-resistant Acinetobacter baumannii has become a complex problem for clinical anti-infective treatments.
Yuhang Wang, Jie Yang, Xiaoli Sun, Mengying Li, Pengyu Zhang, Zhongtian Zhu, Hongmei Jiao, Tingting Guo, Guocai Li   +8 more
doaj   +1 more source

Characterization of CRISPR-Cas Systems in Clinical Klebsiella pneumoniae Isolates Uncovers Its Potential Association With Antibiotic Susceptibility

Frontiers in Microbiology, 2018
Prokaryotic CRISPR-Cas systems limit the acquisition of genetic elements and provide immunity against invasive bacteriophage. The characteristics of CRISPR-Cas systems in clinical Klebsiella pneumoniae isolates are still unknown. Here, 97 K.
Hsin-Yu Li, Cheng-Yen Kao, Wei-Hung Lin, Po-Xing Zheng, Jing-Jou Yan, Ming-Cheng Wang, Ching-Hao Teng, Chin-Chung Tseng, Jiunn-Jong Wu   +8 more
doaj   +1 more source

CRISPR-Cas-Docker: web-based in silico docking and machine learning-based classification of crRNAs with Cas proteins

BMC Bioinformatics, 2023
Background CRISPR-Cas-Docker is a web server for in silico docking experiments with CRISPR RNAs (crRNAs) and Cas proteins. This web server aims at providing experimentalists with the optimal crRNA-Cas pair predicted computationally when prokaryotic ...
Ho-min Park, Jongbum Won, Yunseol Park, Esla Timothy Anzaku, Joris Vankerschaver, Arnout Van Messem, Wesley De Neve, Hyunjin Shim   +7 more
doaj   +1 more source

Adaptation by Type III CRISPR-Cas Systems: Breakthrough Findings and Open Questions

Frontiers in Microbiology, 2022
CRISPR-Cas systems acquire heritable defense memory against invading nucleic acids through adaptation. Type III CRISPR-Cas systems have unique and intriguing features of defense and are important in method development for Genetics research. We started to
Xinfu Zhang, Xinfu Zhang, Xinmin An
doaj   +1 more source

Drug Inducible CRISPR/Cas Systems

Computational and Structural Biotechnology Journal, 2019
Clustered, regularly interspaced, short palindromic repeats (CRISPR)/CRISPR-associated protein (Cas) systems have been employed as a powerful versatile technology for programmable gene editing, transcriptional modulation, epigenetic modulation, and genome labeling, etc.
Yu Wang, Li Chen, Ju Zhang, Jingfang Zhang   +3 more
openaire   +4 more sources

An updated evolutionary classification of CRISPR–Cas systems [PDF]

Nature Reviews Microbiology, 2015
The evolution of CRISPR-cas loci, which encode adaptive immune systems in archaea and bacteria, involves rapid changes, in particular numerous rearrangements of the locus architecture and horizontal transfer of complete loci or individual modules. These dynamics complicate straightforward phylogenetic classification, but here we present an approach ...
Kira S. Makarova, Rebecca M. Terns, Malcolm F. White, Stan J. J. Brouns, Rodolphe Barrangou, Philippe Horvath, Alexander F. Yakunin, Francisco J. M. Mojica, Daniel H. Haft, Roger A. Garrett, Shiraz A. Shah, Eugene V. Koonin, Fabrizio Costa, Emmanuelle Charpentier, Sylvain Moineau, Omer S. Alkhnbashi, Michael P. Terns, Yuri I. Wolf, John van der Oost, Sita J. Saunders, Rolf Backofen   +20 more
openaire   +4 more sources

Insights into the CRISPR/Cas system of Gardnerella vaginalis [PDF]

BMC Microbiology, 2012
Gardnerella vaginalis is identified as the predominant colonist of the vaginal tracts of women diagnosed with bacterial vaginosis (BV). G. vaginalis can be isolated from healthy women, and an asymptomatic BV state is also recognised. The association of G.
Aurelija Zvirbliene, Milda Pleckaityte, Milda Zilnyte   +2 more
openaire   +4 more sources

Unification of Cas protein families and a simple scenario for the origin and evolution of CRISPR-Cas systems

Biology Direct, 2011
Background The CRISPR-Cas adaptive immunity systems that are present in most Archaea and many Bacteria function by incorporating fragments of alien genomes into specific genomic loci, transcribing the inserts and using the transcripts as guide RNAs to ...
Wolf Yuri I, Aravind L, Makarova Kira S, Koonin Eugene V   +3 more
doaj   +1 more source

A Systems-Theoretical Formalization of Closed Systems [PDF]

arXiv, 2023
There is a lack of formalism for some key foundational concepts in systems engineering. One of the most recently acknowledged deficits is the inadequacy of systems engineering practices for engineering intelligent systems. In our previous works, we proposed that closed systems precepts could be used to accomplish a required paradigm shift for the ...
arxiv