Cited by 43Bacterial Genetics and BiotechnologyGenomics and Chromatin DynamicsDNA Repair Mechanisms

The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.

Unequal access of chromosomal regions to each other in Salmonella: probing chromosome structure with phage λ integrase‐mediated long‐range rearrangements

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Abstract

Summary: We have investigated the fluidity of the Salmonella chromosome architecture using the phage lambda site‐specific recombination system as a probe. We determined how chromosome position affects the extent of integrase‐mediated recombination between pairs of inversely oriented att sites at various loci. We also investigated the accessibility of each chromosomal att site to an extrachromosomal partner carried on a low‐copy plasmid. Recombination events were assayed by semi‐quantitative polymerase chain reaction of the attP product. The extent of recombination between the chromosome and the plasmid was generally higher than intrachromosomal recombination except for two loci, araA::attL and galT::attL, which gave no detectable recombination with any other locus. Based on 20 intervals, we found that chromosomal locations are not equally accessible to each other. Although multiple factors probably affect accessibility, the most important is the specific combination of the end‐points used. Neither the size of the intervals nor the accessibility of individual end‐points to extrachromosomal sequences is as important. These results suggest that the chromosome is not completely fluid but rather organized in some way, with barriers that limit the movement of DNA within the cell. The nature of the barriers involved in chromosomal organization remains to be determined.

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Crossref · 10.1111/j.1365-2958.2004.03976.x

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  • Previous explanations for possible mechanisms underlying chromosomal inversion included illegitimate recombination, intra-chromosomally homologous recombination, and integrase-mediated site-specific recombination.

    “Based on these molecular evidences, previous explanations for the possible mechanisms underlying chromosomal inversion included illegitimate recombination,51–53 intra-chromosomally homologous recombination,54 as well as integrase-mediated site-specific recombination.55 , 56”

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Research works printed but not linked: 2

  1. Keener J., 1996, Escherichia coli and Salmonella typhimurium, 1417
  2. Pettijohn D.E., 1996, Escherichia coli and Salmonella typhimurium, 158

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Metadata

Authors
Garcia‐Russell, N., Harmon, T. G., Le, T. Q., Amaladas, N. H., Mathewson, R. D., & Segall, A. M.
Affiliations
San Diego State University (US)
Corresponding author
Segall, Anca M.
Venue
Molecular Microbiology
Publisher
Wiley
Published
2004-03-19
Volume
52
Issue
2
Pages
329-344
ISSN
  • 0950-382X (ISSN-L)
  • 1365-2958
OpenAlex
W2159931015
Cited by
43
References
50
Citations by year
2021: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 1 · 2014: 2 · 2013: 2 · 2012: 5
FWCI
3.38
Type
journal article
Language
en
Open access
Locations
  • Molecular Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • National Institutes of Health
  • National Institute of General Medical Sciences (R25-GM58906, R01 GM52847, R25GM058906, R01GM052847)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
chromosome organization, site-specific recombination, att site
MeSH terms
Attachment Sites, Microbiological, Bacterial Proteins, Bacteriophages, Chromosomes, Bacterial, DNA Transposable Elements, DNA, Bacterial, DNA, Viral, Bacteriophage lambda, Plasmids, Recombination, Genetic, Salmonella typhimurium, Integrases

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