QcrA

• Description: Rieske factor, menaquinol:cytochrome c oxidoreductase (iron-sulfur subunit), component of the cytochrome bc1 complex
  
  

Gene name	qcrA
Synonyms	bfcA, petC
Essential	no
Product	menaquinol:cytochrome c oxidoreductase (iron-sulfur subunit)
Function	respiration
Gene expression levels in SubtiExpress: qcrA
Interactions involving this protein in SubtInteract: QcrA
MW, pI	18 kDa, 6.078
Gene length, protein length	501 bp, 167 aa
Immediate neighbours	qcrB, ypiF
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

respiration, membrane proteins

This gene is a member of the following regulons

AbrB regulon, CcpA regulon, ResD regulon

The gene

Basic information

• Locus tag: BSU22560

Database entries

• BsubCyc: BSU22560

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: accD/PCCB family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactors: contains an iron-sulfur cluster

• Effectors of protein activity:

• Interactions:
  • part of a respiratory supercomplex PubMed
  • QcrA-QcrB-QcrC PubMed

• Localization:
  • cell membrane PubMed
  • delivered to the membrane by the TatAY-TatCY protein secretion system, this depends on prior dusulfide bond formation and co-factor insertion PubMed

Database entries

• BsubCyc: BSU22560

• Structure:

• UniProt: P46911

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: qcrA-qcrB-qcrC PubMed

• Expression browser: qcrA PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • repressed by casamino acids PubMed
  • induced by oxygen limitation (ResD) PubMed
  • repressed by glucose (5.5-fold) (CcpA) PubMed

• Regulatory mechanism:
  • ResD: transcription activation PubMed
  • CcpA: transcription repression PubMed
  • AbrB: transcription repression PubMed

• Additional information:
  • number of protein molecules per cell (minimal medium with glucose and ammonium): 204 PubMed
  • number of protein molecules per cell (complex medium with amino acids, without glucose): 1343 PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Reviews

Vivianne J Goosens, Carmine G Monteferrante, Jan Maarten van Dijl
The Tat system of Gram-positive bacteria.
Biochim Biophys Acta: 2014, 1843(8);1698-706
[PubMed:24140208] [WorldCat.org] [DOI] (P p)

Original publications

Vivianne J Goosens, Carmine G Monteferrante, Jan Maarten van Dijl
Co-factor insertion and disulfide bond requirements for twin-arginine translocase-dependent export of the Bacillus subtilis Rieske protein QcrA.
J Biol Chem: 2014, 289(19);13124-31
[PubMed:24652282] [WorldCat.org] [DOI] (I p)

Pedro M F Sousa, Marco A M Videira, Filipe A S Santos, Brian L Hood, Thomas P Conrads, Ana M P Melo
The bc:caa3 supercomplexes from the Gram positive bacterium Bacillus subtilis respiratory chain: a megacomplex organization?
Arch Biochem Biophys: 2013, 537(1);153-60
[PubMed:23880299] [WorldCat.org] [DOI] (I p)

Vivianne J Goosens, Andreas Otto, Corinna Glasner, Carmine C Monteferrante, René van der Ploeg, Michael Hecker, Dörte Becher, Jan Maarten van Dijl
Novel twin-arginine translocation pathway-dependent phenotypes of Bacillus subtilis unveiled by quantitative proteomics.
J Proteome Res: 2013, 12(2);796-807
[PubMed:23256564] [WorldCat.org] [DOI] (I p)

Onuma Chumsakul, Hiroki Takahashi, Taku Oshima, Takahiro Hishimoto, Shigehiko Kanaya, Naotake Ogasawara, Shu Ishikawa
Genome-wide binding profiles of the Bacillus subtilis transition state regulator AbrB and its homolog Abh reveals their interactive role in transcriptional regulation.
Nucleic Acids Res: 2011, 39(2);414-28
[PubMed:20817675] [WorldCat.org] [DOI] (I p)

Hans-Matti Blencke, Georg Homuth, Holger Ludwig, Ulrike Mäder, Michael Hecker, Jörg Stülke
Transcriptional profiling of gene expression in response to glucose in Bacillus subtilis: regulation of the central metabolic pathways.
Metab Eng: 2003, 5(2);133-49
[PubMed:12850135] [WorldCat.org] [DOI] (P p)

Ulrike Mäder, Georg Homuth, Christian Scharf, Knut Büttner, Rüdiger Bode, Michael Hecker
Transcriptome and proteome analysis of Bacillus subtilis gene expression modulated by amino acid availability.
J Bacteriol: 2002, 184(15);4288-95
[PubMed:12107147] [WorldCat.org] [DOI] (P p)

G Sun, E Sharkova, R Chesnut, S Birkey, M F Duggan, A Sorokin, P Pujic, S D Ehrlich, F M Hulett
Regulators of aerobic and anaerobic respiration in Bacillus subtilis.
J Bacteriol: 1996, 178(5);1374-85
[PubMed:8631715] [WorldCat.org] [DOI] (P p)

J Yu, L Hederstedt, P J Piggot
The cytochrome bc complex (menaquinone:cytochrome c reductase) in Bacillus subtilis has a nontraditional subunit organization.
J Bacteriol: 1995, 177(23);6751-60
[PubMed:7592464] [WorldCat.org] [DOI] (P p)