My NCBI | Sign In
RSS Settings
  • Search:

Display Settings:

Format

Send to:

Choose Destination

    J Mol Biol. 1987 Aug 20;196(4):781-8.

    Location and sequence of the promoter of the gene for the NADH-dependent nitrite reductase of Escherichia coli and its regulation by oxygen, the Fnr protein and nitrite.

    Jayaraman PS, Peakman TC, Busby SJ, Quincey RV, Cole JA.

    Department of Biochemistry, University of Birmingham, U.K.

    The DNA sequence containing the start of the Escherichia coli nirB gene is reported. The N-terminal amino acid sequence of purified NADH-dependent nitrite reductase coincided with that predicted from the DNA sequence, confirming that nirB is the structural gene for nitrite reductase apoprotein and identifying the translation start point. Using nuclease S1 mapping, the sole transcription startpoint for the nirB gene was found 23 or 24 base-pairs upstream from the ATG initiation codon. By subcloning successively smaller DNA fragments into a beta-galactosidase expression vector plasmid, we located the promoter within a sequence bounded by a TaqI site at +14 with respect to the transcription startpoint and a HpaII site at -208. Measurements in vivo of beta-galactosidase expression and RNA levels due to nirB promoter activity showed that this promoter was activated during anaerobic growth. Optimal activity was found only after anaerobic growth in the presence of nitrite. The sequence of the nirB promoter is compared with sequences found at other anaerobically activated promoters.

    PMID: 2445993 [PubMed - indexed for MEDLINE]

    Publication Types, MeSH Terms, Substances, Secondary Source ID

    Publication Types:

    MeSH Terms:

    Substances:

    Secondary Source ID:

    LinkOut - more resources

    Full Text Sources:

    Molecular Biology Databases:

    Supplemental Content

    Click here to read

    Related articles

    Cited by 30 PubMed Central articles

    All links from this record

    • Related Articles

      Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.

    • Compound (MeSH Keyword)

      PubChem chemical compound records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.

    • Gene

      Gene records that cite the current articles. Citations in Gene are added manually by NCBI or imported from outside public resources.

    • Nucleotide

      Primary database (GenBank) nucleotide records reported in the current articles as well as Reference Sequences (RefSeqs) that include the articles as references.

    • Nucleotide (Weighted)

      Nucleotide records associated with the current articles through the Gene database. These are the related sequences on the Gene record that are added manually by NCBI.

    • Protein (RefSeq)

      NCBI protein Reference Sequences (RefSeqs) that are cited in the current articles, included in the corresponding Gene Reference into Function, or that include the PubMed articles as references.

    • Protein (Weighted)

      Protein records associated with the current articles through related Gene database records. These are the related sequences on the Gene record that are added manually by NCBI.

    • Protein Clusters

      Clusters of related proteins from the Protein Clusters database that cite the current articles. Sources of references in Protein Clusters include the associated Gene and Conserved Domain records as well as NCBI added citations.

    • Substance (MeSH Keyword)

      PubChem chemical substance (submitted) records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.

    • Taxonomy via GenBank

      Taxonomy records associated with the current articles through taxonomic information on related molecular database records (Nucleotide, Protein, Gene, SNP, Structure).

    • Domains

      Conserved Domain Database (CDD) records that cite the current articles. Citations are from the CDD source database records (PFAM, SMART).

    • Protein

      Protein translation features of primary database (GenBank) nucleotide records reported in the current articles as well as Reference Sequences (RefSeqs) that include the articles as references.

    • GEO Profiles

      Gene Expression Omnibus (GEO) Profiles of molecular abundance data. The current articles are references on the Gene record associated with the GEO profile.

    • Cited in PMC

      Full-text articles in the PubMed Central Database that cite the current articles.

    Recent activity