CydB

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  • Description: cytochrome bd ubiquinol oxidase (subunit II), high affinity terminal oxidase

Gene name cydB
Synonyms yxkL
Essential no
Product cytochrome bd ubiquinol oxidase (subunit II), high affinity terminal oxidase
Function respiration
MW, pI 37 kDa, 9.48
Gene length, protein length 1014 bp, 338 aa
Immediate neighbours cydC, cydA
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
CydB context.gif
This image was kindly provided by SubtiList



Categories containing this gene/protein

respiration, membrane proteins

This gene is a member of the following regulons

CcpA regulon, ResD regulon, Rex regulon

The gene

Basic information

  • Locus tag: BSU38750

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: Ubiquinol-8 + O2 = Ubiquinone-8 + H2O (according to Swiss-Prot)
  • Protein family:
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s): contains an iron-sulfur cluster
  • Effectors of protein activity:
  • Interactions:
  • Localization: cell membrane (according to Swiss-Prot)

Database entries

  • Structure:
  • KEGG entry: [3]
  • E.C. number:

Additional information

Expression and regulation

  • Regulation:
    • repressed by glucose (CcpA)
    • induced under anaerobic conditions (Rex) PubMed
    • expressed under anaerobic conditions (ResD) PubMed
  • Regulatory mechanism:
  • Additional information:

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks

References

Ankita Puri-Taneja, Matthew Schau, Yinghua Chen, F Marion Hulett
Regulators of the Bacillus subtilis cydABCD operon: identification of a negative regulator, CcpA, and a positive regulator, ResD.
J Bacteriol: 2007, 189(9);3348-58
[PubMed:17322317] [WorldCat.org] [DOI] (P p)

Jonas T Larsson, Annika Rogstam, Claes von Wachenfeldt
Coordinated patterns of cytochrome bd and lactate dehydrogenase expression in Bacillus subtilis.
Microbiology (Reading): 2005, 151(Pt 10);3323-3335
[PubMed:16207915] [WorldCat.org] [DOI] (P p)

Matthew Schau, Yinghua Chen, F Marion Hulett
Bacillus subtilis YdiH is a direct negative regulator of the cydABCD operon.
J Bacteriol: 2004, 186(14);4585-95
[PubMed:15231791] [WorldCat.org] [DOI] (P p)

N Azarkina, S Siletsky, V Borisov, C von Wachenfeldt, L Hederstedt, A A Konstantinov
A cytochrome bb'-type quinol oxidase in Bacillus subtilis strain 168.
J Biol Chem: 1999, 274(46);32810-7
[PubMed:10551842] [WorldCat.org] [DOI] (P p)

L Winstedt, K Yoshida, Y Fujita, C von Wachenfeldt
Cytochrome bd biosynthesis in Bacillus subtilis: characterization of the cydABCD operon.
J Bacteriol: 1998, 180(24);6571-80
[PubMed:9852001] [WorldCat.org] [DOI] (P p)