BrxA

• Description: bacilliredoxin
  
  

Gene name	brxA
Synonyms	yphP
Essential	no
Product	bacilliredoxin
Function	de-bacillithiolation of S-bacillithiolated OhrR and MetE
Gene expression levels in SubtiExpress: brxA
Interactions involving this protein in SubtInteract: BrxA
MW, pI	15 kDa, 4.619
Gene length, protein length	432 bp, 144 aa
Immediate neighbours	ypiP, ilvD
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

resistance against oxidative and electrophile stress

The gene

Basic information

• Locus tag: BSU21860

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:
  • de-bacillithiolation of S-bacillithiolated OhrR and MetE PubMed

• Protein family: scpA family (according to Swiss-Prot)

• Paralogous protein(s): BrxB

Extended information on the protein

• Kinetic information:

• Domains: contains an CxC redox motif [3]

• Modification:
  • S-bacillithiolation upon hypochlorite stress on Cys-53 PubMed

• Cofactors:

• Effectors of protein activity:

• Interactions:
  • BrxA-MetE PubMed
  • BrxA-OhrR PubMed

• Localization:

Database entries

• Structure: 3FHK PubMed

• UniProt: P54170

• KEGG entry: [4]

• E.C. number:

Expression and regulation

• Operon: brxA (according to DBTBS)

• Expression browser: brxA PubMed

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Your additional remarks

YpdA, BrxA, BrxB and YtxJ co-occur in those species predicted to synthesize bacillithiol.

References

Ahmed Gaballa, Bui Khanh Chi, Alexandra A Roberts, Dörte Becher, Chris J Hamilton, Haike Antelmann, John D Helmann
Redox regulation in Bacillus subtilis: The bacilliredoxins BrxA(YphP) and BrxB(YqiW) function in de-bacillithiolation of S-bacillithiolated OhrR and MetE.
Antioxid Redox Signal: 2014, 21(3);357-67
[PubMed:24313874] [WorldCat.org] [DOI] (I p)

Bui Khanh Chi, Alexandra A Roberts, Tran Thi Thanh Huyen, Katrin Bäsell, Dörte Becher, Dirk Albrecht, Chris J Hamilton, Haike Antelmann
S-bacillithiolation protects conserved and essential proteins against hypochlorite stress in firmicutes bacteria.
Antioxid Redox Signal: 2013, 18(11);1273-95
[PubMed:22938038] [WorldCat.org] [DOI] (I p)

Bui Khanh Chi, Katrin Gronau, Ulrike Mäder, Bernd Hessling, Dörte Becher, Haike Antelmann
S-bacillithiolation protects against hypochlorite stress in Bacillus subtilis as revealed by transcriptomics and redox proteomics.
Mol Cell Proteomics: 2011, 10(11);M111.009506
[PubMed:21749987] [WorldCat.org] [DOI] (I p)

Ahmed Gaballa, Gerald L Newton, Haike Antelmann, Derek Parsonage, Heather Upton, Mamta Rawat, Al Claiborne, Robert C Fahey, John D Helmann
Biosynthesis and functions of bacillithiol, a major low-molecular-weight thiol in Bacilli.
Proc Natl Acad Sci U S A: 2010, 107(14);6482-6
[PubMed:20308541] [WorldCat.org] [DOI] (I p)

Urszula Derewenda, Tomasz Boczek, Kelly L Gorres, Minmin Yu, Li-wei Hung, David Cooper, Andrzej Joachimiak, Ronald T Raines, Zygmunt S Derewenda
Structure and function of Bacillus subtilis YphP, a prokaryotic disulfide isomerase with a CXC catalytic motif .
Biochemistry: 2009, 48(36);8664-71
[PubMed:19653655] [WorldCat.org] [DOI] (I p)