KtrC

• Description: low affinity potassium transporter KtrC-KtrD, peripheric membrane component
  
  

Gene name	ktrC
Synonyms	ylxV, yzaC, ykqB
Essential	no
Product	low affinity potassium transporter KtrC-KtrD, peripheric membrane component (proton symport)
Function	potassium uptake
Gene expression levels in SubtiExpress: ktrC
Interactions involving this protein in SubtInteract: KtrC
Metabolic function and regulation of this protein in SubtiPathways: Metal ion homeostasis, Stress
MW, pI	24 kDa, 5.63
Gene length, protein length	663 bp, 221 aa
Immediate neighbours	ykqA, adeC
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

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

The gene

Basic information

• Locus tag: BSU14510

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family:

• Paralogous protein(s): KtrA

Extended information on the protein

• Kinetic information:

• Domains:
  • contains a RCK_N domain at the N-terminus (according to UniProt, http://www.uniprot.org/uniprot/?query=domain:%22RCK+N-terminal+domain*%22)
  • contains a RCK_C domain at the C-terminus (according to UniProt, [2])

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:
  • KtrC-KtrD PubMed

• Localization: peripheral membrane protein PubMed

Database entries

• Structure:

• UniProt: P39760

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: ktrC PubMed

• Expression browser: ktrC PubMed

• Sigma factor:

• Regulation: constitutively expressed PubMed

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:
  • 1A955 ( ktrC::spec), PubMed, available at BGSC

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

Erhard Bremer, University of Marburg, Germany homepage

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)