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[Antimodification activity of the ArdA and Ocr proteins].

Genetika - 1 Feb 2011

Zavil'gel'skiĭ G V, Kotova V Iu, Rastorguev S M

Abstract excerpt

The ArdA and Ocr antirestriction proteins, whose genes are in transmissible plasmids (ardA) and bacteriophage genomes (0.3 (ocr)), specifically inhibit type I restriction-modification enzymes. The Ocr protein (T7 bacteriophage) was shown to inhibit both restriction (endonuclease) and modification (methylase) activities of the EcoKI enzyme in a broad range of intracellular concentrations (starting from 10-20...

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PMID: 21516787

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

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[Antimodification activity of the ArdA and Ocr proteins].PMID 21516787Read ↗

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Plasmid-encoded antirestriction protein ArdA can discriminate between type I methyltransferase and complete restriction-modification system.Semantic proximity Read ↗

[Role of "anti-restriction" motif in functional activity of anti-restriction protein ArdA pKM101 (incN)].Semantic proximity Read ↗

Mutations of the domain forming the dimeric interface of the ArdA protein affect dimerization and antimodification activity but not antirestriction activity.Semantic proximity Read ↗

Exploring the DNA mimicry of the Ocr protein of phage T7.Semantic proximity Read ↗

[Alleviation of type I restriction in the presence of plasmids of group inc I. General characteristics and molecular cloning of the ard gene].Semantic proximity Read ↗

Antirestriction Protein ArdB (R64) Interacts with DNA.Semantic proximity Read ↗

[The ard gene, coding for a type I restriction inhibitor, is present in plasmids of FII, B/O, and K-groups of incompatibility].Semantic proximity Read ↗

[Antirestriction activity of the transmissive plasmid R64 (IncI1) is determined by the arsR gene].Semantic proximity Read ↗

[Mechanisms for the recognition of each other by nucleic acid molecules].Semantic proximity Read ↗

Target recognition by EcoKI: the recognition domain is robust and restriction-deficiency commonly results from the proteolytic control of enzyme activity.Semantic proximity Read ↗

Maintenance forced by a restriction-modification system can be modulated by a region in its modification enzyme not essential for methyltransferase activity.Semantic proximity Read ↗

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