نتایج جستجو برای: cas proteins

تعداد نتایج: 577270  

Journal: :The British journal of nutrition 2016
Nora Benaicheta Fatima Z Labbaci Malika Bouchenak Farida O Boukortt

Type 2 diabetes (T2D) is a major risk factor of CVD. The effects of purified sardine proteins (SP) were examined on glycaemia, insulin sensitivity and reverse cholesterol transport in T2D rats. Rats fed a high-fat diet (HFD) for 5 weeks, and injected with a low dose of streptozotocin, were used. The diabetic rats were divided into four groups, and they were fed casein (CAS) or SP combined with ...

ALI MOHAMMAD HAJI ZEINALI, DAVOOD KAZEMI SALEH,

Background: Carotid artery stenting (CAS) has recently been recommended as an alternative to carotid endarterectomy (CEA) by some clinicians. Objective: This study was designed to evaluate the success rate and in-hospital and 30-day adverse events in our first experiences in Iran for CAS with protection devices, to document our results and guide further use of CAS. Methods: From December 2...

2018
Clare Rollie Shirley Graham Christophe Rouillon Malcolm F White

The CRISPR-Cas system for prokaryotic adaptive immunity provides RNA-mediated protection from viruses and mobile genetic elements. Adaptation is dependent on the Cas1 and Cas2 proteins along with varying accessory proteins. Here we analyse the process in Sulfolobus solfataricus, showing that while Cas1 and Cas2 catalyze spacer integration in vitro, host factors are required for specificity. Spe...

Journal: :Cell 2016
April Pawluk Nadia Amrani Yan Zhang Bianca Garcia Yurima Hidalgo-Reyes Jooyoung Lee Alireza Edraki Megha Shah Erik J. Sontheimer Karen L. Maxwell Alan R. Davidson

CRISPR-Cas9 technology would be enhanced by the ability to inhibit Cas9 function spatially, temporally, or conditionally. Previously, we discovered small proteins encoded by bacteriophages that inhibit the CRISPR-Cas systems of their host bacteria. These "anti-CRISPRs" were specific to type I CRISPR-Cas systems that do not employ the Cas9 protein. We posited that nature would also yield Cas9 in...

2015
Daria Vorontsova Kirill A. Datsenko Sofia Medvedeva Joseph Bondy-Denomy Ekaterina E. Savitskaya Ksenia Pougach Maria Logacheva Blake Wiedenheft Alan R. Davidson Konstantin Severinov Ekaterina Semenova

CRISPR immunity depends on acquisition of fragments of foreign DNA into CRISPR arrays. For type I-E CRISPR-Cas systems two modes of spacer acquisition, naïve and primed adaptation, were described. Naïve adaptation requires just two most conserved Cas1 and Cas2 proteins; it leads to spacer acquisition from both foreign and bacterial DNA and results in multiple spacers incapable of immune respons...

Journal: :Cell 2017
Benjamin J. Rauch Melanie R. Silvis Judd F. Hultquist Christopher S. Waters Michael J. McGregor Nevan J. Krogan Joseph Bondy-Denomy

Bacterial CRISPR-Cas systems utilize sequence-specific RNA-guided nucleases to defend against bacteriophage infection. As a countermeasure, numerous phages are known that produce proteins to block the function of class 1 CRISPR-Cas systems. However, currently no proteins are known to inhibit the widely used class 2 CRISPR-Cas9 system. To find these inhibitors, we searched cas9-containing bacter...

2017
Hitoshi Kumagai Takashi Nakanishi Tomoaki Matsuura Yasuhiko Kato Hajime Watanabe

The clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated system (Cas) is widely used for mediating the knock-in of foreign DNA into the genomes of various organisms. Here, we report a process of CRISPR/Cas-mediated knock-in via non-homologous end joining by the direct injection of Cas9/gRNA ribonucleoproteins (RNPs) in the crustacean Daphnia magna, which is a mod...

2015
Clément Lier Elodie Baticle Philippe Horvath Eve Haguenoer Anne-Sophie Valentin Philippe Glaser Laurent Mereghetti Philippe Lanotte

CRISPR-Cas systems (clustered regularly interspaced short palindromic repeats/CRISPR-associated proteins) are found in 90% of archaea and about 40% of bacteria. In this original system, CRISPR arrays comprise short, almost unique sequences called spacers that are interspersed with conserved palindromic repeats. These systems play a role in adaptive immunity and participate to fight non-self DNA...

Journal: :American journal of physiology. Endocrinology and metabolism 2001
M Dangin Y Boirie C Garcia-Rodenas P Gachon J Fauquant P Callier O Ballèvre B Beaufrère

To evaluate the importance of protein digestion rate on protein deposition, we characterized leucine kinetics after ingestion of "protein" meals of identical amino acid composition and nitrogen contents but of different digestion rates. Four groups of five or six young men received an L-[1-13C]leucine infusion and one of the following 30-g protein meals: a single meal of slowly digested casein ...

2016
Ge Dong Mingxiong He Hong Feng

CRISPR-Cas (clustered regularly interspaced short palindromic repeats—CRISPR associated proteins) is a RNA-guided defense immune system that prevents some genetic elements such as plasmids and virus from getting into the bacterial cells. Zymomonas mobilis is an ethanologenic bacterium, which encodes a subtype I-F CRISPR-Cas system containing three CRISPR loci and a far distant cas gene cluster....

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