ChaA

• Description: H+/Ca2+ exchanger
  
  

Gene name	chaA
Synonyms	yfkE
Essential	no
Product	calcium transport in/out via proton antiporter
Function	calcium uptake/ export
MW, pI	37 kDa, 5.206
Gene length, protein length	1053 bp, 351 aa
Immediate neighbours	yfkF, yfkD
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

transporters/ other, metal ion homeostasis (K, Na, Ca, Mg), sporulation proteins, general stress proteins (controlled by SigB)

This gene is a member of the following regulons

SigB regulon, SigG regulon

The gene

Basic information

• Locus tag: BSU07920

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family:

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure:

• UniProt: O34840

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: chaA-yfkD PubMed

• Sigma factor: SigG, SigB PubMed

• Regulation: expressed in the forespore (SigG) PubMed

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Makoto Fujisawa, Yuko Wada, Takahiro Tsuchiya, Masahiro Ito
Characterization of Bacillus subtilis YfkE (ChaA): a calcium-specific Ca2+/H+ antiporter of the CaCA family.
Arch Microbiol: 2009, 191(8);649-57
[PubMed:19543710] [WorldCat.org] [DOI] (I p)