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Cited by 176Bacterial Genetics and BiotechnologyEscherichia coli research studiesFungal and yeast genetics research

The DOI matches its Crossref record; 57 of the 57 references it cites were found in a registry or an index.

Nitrate regulation of anaerobic respiratory gene expression in Escherichia coli

Stewart, Valley·1993·Molecular Microbiology
DOI 10.1111/j.1365-2958.1993.tb01704.x
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Abstract

Synthesis of most anaerobic respiratory pathways is subject to dual regulation by anaerobiosis and nitrate. Anaerobic induction is mediated by the FNR protein. Dual interacting two-component regulatory systems mediate nitrate induction and repression. The response regulator protein NARL binds DNA to control nitrate induction and repression of genes encoding nitrate respiration enzymes and alternate anaerobic respiratory enzymes, respectively. The homologous protein NARP controls nitrite induction of at least two operons. Nitrate and nitrite signalling are both mediated by the homologous sensor proteins NARX and NARQ. Recent mutational analyses have defined a heptamer sequence necessary for specific DNA binding by the NARL protein. These heptamers are located at different positions in the control regions of different operons. The NARL protein-binding sites in the narG (nitrate reductase) and narK (nitrate-nitrite antiporter) operon control regions are located approximately 200bp upstream of the transcription initiation site. The integration host factor (IHF) greatly stimulates nitrate induction of these operons, indicating that a specific DNA loop brings NARL protein, bound at the upstream region, into the proximity of the promoter for transcription activation. Other NARL protein-dependent opersons do not require IHF for nitrate induction, and the arrangement of NARL heptamer sequences in these control regions is quite different. This complexity of signal transduction pathways, coupled with the diversity of control region architecture, combine to provide many interesting areas for future investigation. An additional challenge is to determine how or if the FNR and NARL proteins interact to mediate dual positive control of transcription initiation.

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Crossref · 10.1111/j.1365-2958.1993.tb01704.x

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Metadata

Authors
Stewart, V.
Affiliations
Cornell University (US)
Corresponding author
Stewart, Valley
ORCID
Stewart, Valley
Venue
Molecular Microbiology
Publisher
Wiley
Published
1993-08
Volume
9
Issue
3
Pages
425-434
ISSN
  • 0950-382X (ISSN-L)
  • 1365-2958
DOI
10.1111/j.1365-2958.1993.tb01704.x
OpenAlex
W2099926472
Cited by
176
References
57
Citations by year
2026: 1 · 2025: 4 · 2024: 5 · 2022: 5 · 2021: 2 · 2020: 4 · 2019: 6 · 2018: 1 · 2017: 2 · 2016: 5 · 2015: 5 · 2014: 3 · 2013: 3 · 2012: 5
FWCI
2.46
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor, 4835 d)
Locations
  • Molecular Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Immunology and Microbiology › Microbiology › Escherichia coli research studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
Keywords
nitrate regulation, anaerobic respiration, Escherichia coli, NarL, NARP, NARX network, FNR, two-component systems, nitrate reductase, integration host factor, transcriptional regulation, dual regulation
MeSH terms
Nitrate Transporters, Anaerobiosis, Bacterial Proteins, Carrier Proteins, DNA-Binding Proteins, Escherichia coli, Genes, Bacterial, Iron-Sulfur Proteins, Nitrate Reductases, Nitrates, Oxygen Consumption, Gene Expression Regulation, Bacterial, Anion Transport Proteins, Escherichia coli Proteins, Nitrate Reductase

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