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Article

Phenotypic and genotypic variation in methylases involved in type II restriction-modification systems in Helicobacter pylori.

Nucleic acids research - 1 Jun 2002

Takata Tohru, Aras Rahul, Tavakoli Donald, Ando Takafumi, Olivares Asalia Z, Blaser Martin J

Abstract excerpt

To determine relationships between Helicobacter pylori geographical origin and type II methylase activity, we examined 122 strains from various locations around the world for methylase expression. Most geographic regions possessed at least one strain resistant to digestion by each of 14 restriction endonucleases studied. Across all of the strains studied, the average number of active methylases was 8.2 +/- 1.9...

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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Identifiers

PMID: 12034832
DOI: 10.1093/nar/30.11.2444
PMCID: PMC117188

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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