Results 41 to 50 of about 185,882 (314)

Structural basis of transcription inhibition by the DNA mimic protein Ocr of bacteriophage T7

open access: yeseLife, 2020
Bacteriophage T7 infects Escherichia coli and evades the host restriction/modification system. The Ocr protein of T7 was shown to exist as a dimer mimicking DNA and to bind to host restriction enzymes, thus preventing the degradation of the viral genome ...
Fuzhou Ye   +6 more
doaj   +1 more source

A sequential one-pot approach for rapid and convenient characterization of putative restriction-modification systems

open access: yesmSystems, 2023
With the advance of high-throughput sequencing, the molecular basis of coevolutionary interaction between viruses and host microorganisms is predominantly elucidated by in silico genomic analyses, which revealed potential communication of genetic ...
Yi Zhang   +6 more
doaj   +1 more source

Internuclear gene silencing in Phytophthora infestans is established through chromatin remodelling [PDF]

open access: yes, 2008
In the plant pathogen Phytophthora infestans, nuclear integration of inf1 transgenic DNA sequences results in internuclear gene silencing of inf1. Although silencing is regulated at the transcriptional level, it also affects transcription from other ...
Appiah, A.A.   +7 more
core   +3 more sources

Mm19, a Mycoplasma meleagridis Major Surface Nuclease that Is Related to the RE_AlwI Superfamily of Endonucleases. [PDF]

open access: yesPLoS ONE, 2016
Mycoplasma meleagridis infection is widespread in turkeys, causing poor growth and feathering, airsacculitis, osteodystrophy, and reduction in hatchability. Like most mycoplasma species, M.
Elhem Yacoub   +1 more
doaj   +1 more source

Altering under-represented DNA sequences elevates bacterial transformation efficiency

open access: yesmBio, 2023
A cornerstone of bacterial molecular biology is the ability to genetically manipulate the microbe under study. Many bacteria are difficult to manipulate genetically, a phenotype due in part to robust removal of newly acquired DNA, for example, by ...
Shuai Hu   +5 more
doaj   +1 more source

Detection of DNA methylation in eucaryotic cells.

open access: yesFolia Histochemica et Cytobiologica, 2008
The methods of molecular biology allow for analyzing the methylation pattern in the whole genome and in particular genes. We differentiate methylated sequences from unmethylated ones by means of cutting the genomic template with methylation-sensitive ...
Lech Chyczewski   +7 more
doaj   +1 more source

CRISPR/Cas9-mediated phage resistance is not impeded by the DNA modifications of phage T4. [PDF]

open access: yesPLoS ONE, 2014
Bacteria rely on two known DNA-level defenses against their bacteriophage predators: restriction-modification and Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-CRISPR-associated (Cas) systems.
Stephanie J Yaung   +2 more
doaj   +1 more source

Analysis of the subunit assembly of the type IC restriction-modification enzyme EcoR124I [PDF]

open access: yes, 1998
Type I restriction-modification (R-M) enzymes are composed of three different subunits, of which HsdS determines DNA specificity, HsdM is responsible for DNA methylation and HsdR is required for restriction.
Dryden, D T F, Firman, K, Janscak, P
core   +2 more sources

Simple innovative adaptor to improve genome walking with convenient PCR

open access: yesJournal of Genetic Engineering and Biotechnology, 2020
Background Various polymerase chain reaction (PCR)-based methods have been applied for the development of genome walking (GW) technique. These methods which could be based on the application of restriction enzymes or primers have various efficiencies to ...
Seyedeh-Samira Ashrafmansouri   +3 more
doaj   +1 more source

Heterologous Expression and High Degree Purification of the Restriction Endonuclease SauUSI

open access: yesBio-Protocol, 2022
Mechanisms that target and destroy foreign nucleic acids are major barriers to horizontal gene transfer (HGT) in prokaryotes. Amongst them, restriction-modification (R-M) systems are found in ≥75% of the sequenced genomes in Bacteria and Archaea.
Vinayak Tumuluri, Kayarat Saikrishnan
doaj   +1 more source

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