Results 31 to 40 of about 87,449 (274)
Broadness and specificity: ArdB, ArdA, and Ocr against various restriction-modification systems
ArdB, ArdA, and Ocr proteins inhibit the endonuclease activity of the type I restriction-modification enzymes (RMI). In this study, we evaluated the ability of ArdB, ArdA, and Ocr to inhibit different subtypes of Escherichia coli RMI systems (IA, IB, and
Anna A. Kudryavtseva +12 more
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[This corrects the article DOI: 10.1371/journal.pbio.1002442.].
The PLOS Biology Staff
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The helical domain of the EcoR124I motor subunit participates in ATPase activity and dsDNA translocation [PDF]
Type I restriction-modification enzymes are multisubunit, multifunctional molecular machines that recognize specific DNA target sequences, and their multisubunit organization underlies their multifunctionality.
Vitali Bialevich +8 more
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Thermococcus kodakarensis (T. kodakarensis), a hyperthermophilic, genetically accessible model archaeon, encodes two putative restriction modification (R-M) defense systems, TkoI and TkoII.
Kelly M. Zatopek +6 more
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Interaction between EcoRII restriction/modification enzymes and synthetic DNA fragments. Synthesis of substrates containing a single recognition site [PDF]
Светлана А. Кузнецова +7 more
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EcoP15I is a Type III DNA restriction and modification enzyme of Escherichia coli. We show that it contains two modification (Mod) subunits for sequence-specific methylation of DNA and one copy of a restriction endonuclease (Res) subunit for cleavage of DNA containing unmethylated target sequences. Previously the Mod2 dimer in the presence of cofactors
Long Ma +4 more
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Background The discovery of restriction endonucleases and modification DNA methyltransferases, key instruments of genetic engineering, opened a new era of molecular biology through development of the recombinant DNA technology.
Solonin Alexander S +2 more
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Functional coupling of duplex translocation to DNA cleavage in a type I restriction enzyme. [PDF]
Type I restriction-modification enzymes are multifunctional heteromeric complexes with DNA cleavage and ATP-dependent DNA translocation activities located on motor subunit HsdR.
Eva Csefalvay +13 more
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Restriction–modification systems (RMS) are the main gene-engineering tools and a suitable model to study the molecular mechanisms of catalysis and DNA–protein interactions.
Marina V. Zakharova +3 more
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Type I restriction-modification (RM) systems are comprised of two multi-subunit enzymes, the methyltransferase (∼160 kDa), responsible for methylation of DNA, and the restriction endonuclease (∼400 kDa), responsible for DNA cleavage. Both enzymes share a
James E Taylor +4 more
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