KtrD

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  • Description: low affinity potassium transporter KtrC-KtrD, integral membrane subunit

Gene name ktrD
Synonyms ykrM
Essential no
Product low affinity potassium transporter KtrC-KtrD,
integral membrane subunit (proton symport)
Function potassium uptake
Gene expression levels in SubtiExpress: ktrD
Interactions involving this protein in SubtInteract: KtrD
Metabolic function and regulation of this protein in SubtiPathways:
Metal ion homeostasis, Stress
MW, pI 49 kDa, 9.224
Gene length, protein length 1347 bp, 449 aa
Immediate neighbours ykrL, ykzE
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
YkrM context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
KtrD expression.png




























Categories containing this gene/protein

transporters/ other, metal ion homeostasis (K, Na, Ca, Mg), coping with hyper-osmotic stress, membrane proteins

This gene is a member of the following regulons

The gene

Basic information

  • Locus tag: BSU13500

Phenotypes of a mutant

Database entries

  • DBTBS entry: no entry
  • SubtiList entry: [1]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity:
  • Protein family: View classification (according to Swiss-Prot)
  • Paralogous protein(s): KtrB

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:

Database entries

  • Structure:
  • KEGG entry: [2]
  • E.C. number:

Additional information

Expression and regulation

  • Sigma factor:
  • Regulation: constitutively expressed
  • Regulatory mechanism:
  • Additional information:

Biological materials

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

Labs working on this gene/protein

Erhard Bremer, University of Marburg, Germany homepage

Your additional remarks

References

Gudrun Holtmann, Evert P Bakker, Nobuyuki Uozumi, Erhard Bremer
KtrAB and KtrCD: two K+ uptake systems in Bacillus subtilis and their role in adaptation to hypertonicity.
J Bacteriol: 2003, 185(4);1289-98
[PubMed:12562800] [WorldCat.org] [DOI] (P p)