MrpA

• Description: Na+/H+ antiporter subunit, multiple resistance and pH homeostasis
  
  

Gene name	mrpA
Synonyms	yufT, shaA, ntrA
Essential	yes PubMed
Product	Na+/H+ antiporter subunit
Function	sodium export
MW, pI	86 kDa, 9.519
Gene length, protein length	2322 bp, 774 aa
Immediate neighbours	yufS, mrpB
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Coordinates:

Phenotypes of a mutant

essential PubMed

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: MrpA-MrpB-MrpC-MrpD-MrpE-MrpF-MrpG (complex)

• Localization: cell membrane (according to Swiss-Prot)

Database entries

• Structure:

• Swiss prot entry: Q9K2S2

• KEGG entry: BSU31600

• E.C. number:

Expression and regulation

• Operon:

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Yusuke Kajiyama, Masato Otagiri, Junichi Sekiguchi, Toshiaki Kudo, Saori Kosono
The MrpA, MrpB and MrpD subunits of the Mrp antiporter complex in Bacillus subtilis contain membrane-embedded and essential acidic residues.
Microbiology (Reading): 2009, 155(Pt 7);2137-2147
[PubMed:19389778] [WorldCat.org] [DOI] (P p)