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qcrB [2019-07-04 12:37:37]
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qcrB [2019-07-04 12:37:37]

menaquinol:cytochrome c oxidoreductase (cytochrome b subunit), component of the cytochrome bc complex
Locus
BSU22550
Isoelectric point
7.44
Molecular weight
25.34 kDa
Protein length
224 aa Sequence Blast
Gene length
675 bp Sequence Blast
Function
respiration
Product
menaquinol:cytochrome c oxidoreductase (cytochrome b subunit)
Essential
no
Synonyms
bfcB,petB
Outlinks
KEGGBsubCycSubtiListUniProtExpression Browser

Genomic Context

      
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Categories containing this gene/protein

  • Metabolism → Electron transport and ATP synthesis → Respiration → Respiration/ other
  • Groups of genes → Membrane proteins

    • Gene

    Coordinates
    2,363,913 2,364,587

    The protein

    Protein family

  • peptidase M20A family (according to Swiss-Prot)

    • Cofactors

  • heme, covalently bound to Cys-43 PubMed

    • Structure

  • 1VF5 (from Mastigocladus laminosus, 43% identity) PubMed

    • Localization

  • cell membrane PubMed

    • Expression and Regulation

    Operons

    Genes
    qcrA-qcrB-qcrC
    Description
    PubMed

    Sigma factors

  • SigA: sigma factor, PubMed, in SigA regulon

    • Regulatory mechanism

  • ResD: activation, PubMed, in ResD regulon
  • CcpA: repression, PubMed, in CcpA regulon
  • AbrB: repression, PubMed, in AbrB regulon

    • Regulation

  • induced by oxygen limitation (ResD) PubMed
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    Biological materials

    Mutant

  • BKE22550 (qcrB::erm trpC2) available at BGSC, PubMed, upstream reverse: _UP1_CCAGTCATAAATTTTGTTCA, downstream forward: _UP4_TAAACTCTTGATCTGCGAAT
  • BKK22550 (qcrB::kan trpC2) available at BGSC, PubMed, upstream reverse: _UP1_CCAGTCATAAATTTTGTTCA, downstream forward: _UP4_TAAACTCTTGATCTGCGAAT

    • References

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