Cited by 31Bacteriophages and microbial interactionsBacterial Genetics and BiotechnologyCRISPR and Genetic Engineering

The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.

Evidence for Horizontal Transfer of the Eco T38I Restriction- Modification Gene to Chromosomal DNA by the P2 Phage and Diversity of Defective P2 Prophages in Escherichia coli TH38 Strains

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Kita, Keiko, Kawakami, Hideaki, Tanaka, Hiroaki·2003·Journal of Bacteriology

Abstract

A DNA fragment carrying the genes coding for a novel Eco T38I restriction endonuclease (R. Eco T38I) and Eco T38I methyltransferase (M. Eco T38I), which recognize G(A/G)GC(C/T)C, was cloned from the chromosomal DNA of Escherichia coli TH38. The endonuclease and methyltransferase genes were in a head-to-head orientation and were separated by a 330-nucleotide intergenic region. A third gene, the C. Eco T38I gene, was found in the intergenic region, partially overlapping the R. Eco T38I gene. The gene product, C. Eco T38I, acted as both a positive regulator of R. Eco T38I gene expression and a negative regulator of M. Eco T38I gene expression. M. Eco T38I purified from recombinant E . coli cells was shown to be a monomeric protein and to methylate the inner cytosines in the recognition sequence. R. Eco T38I was purified from E . coli HB101 expressing M. Eco T38I and formed a homodimer. The Eco T38I restriction (R)-modification (M) system (R-M system) was found to be inserted between the A and Q genes of defective bacteriophage P2, which was lysogenized in the chromosome at loc I, one of the P2 phage attachment sites observed in both E . coli K-12 MG1655 and TH38 chromosomal DNAs. Ten strains of E . coli TH38 were examined for the presence of the Eco T38I R-M gene on the P2 prophage. Conventional PCR analysis and assaying of R activity demonstrated that all strains carried a single copy of the Eco T38I R-M gene and expressed R activity but that diversity of excision in the ogr , D , H , I , and J genes in the defective P2 prophage had arisen.

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Metadata

Authors
Kita, K., Kawakami, H., & Tanaka, H.
Affiliations
  • Kyoto University (JP)
  • Tottori University (JP)
Venue
Journal of Bacteriology
Published
2003-04
Volume
185
Issue
7
Pages
2296-2305
ISSN
  • 0021-9193 (ISSN-L)
  • 1098-5530
OpenAlex
W2067791889
Cited by
31
References
40
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2022: 1 · 2019: 2 · 2018: 2 · 2017: 3 · 2016: 2 · 2014: 1 · 2013: 1 · 2012: 2
FWCI
1.59
Type
journal article
Language
en
Open access
Locations
  • Journal of Bacteriology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Virology › Bacteriophages and microbial interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
Keywords
horizontal gene transfer, bacteriophage P2, defective prophage, restriction enzymes, methyltransferase, gene expression regulation, prophage excision, lysogeny
MeSH terms
Amino Acid Sequence, Base Sequence, Chromosomes, Bacterial, Cloning, Molecular, DNA Restriction Enzymes, DNA, Bacterial, Escherichia coli, Genes, Bacterial, Lysogeny, Molecular Sequence Data, Recombinant Proteins, Genetic Variation, Deoxyribonucleases, Type II Site-Specific, DNA-Cytosine Methylases, Gene Expression Regulation, Bacterial, Sequence Homology, Amino Acid, Sequence Analysis, Bacteriophage P2, Dimerization, DNA, Intergenic, Gene Transfer, Horizontal, Escherichia coli Proteins, Prophages

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