Difference between revisions of "MrgA"

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= [[Categories]] containing this gene/protein =
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{{SubtiWiki category|[[acquisition of iron]]}},
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{{SubtiWiki category|[[iron metabolism]]}},
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{{SubtiWiki category|[[resistance against oxidative and electrophile stress]]}}
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= This gene is a member of the following [[regulons]] =
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{{SubtiWiki regulon|[[PerR regulon]]}}
  
 
=The gene=
 
=The gene=
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= Categories containing this gene/protein =
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{{SubtiWiki category|[[acquisition of iron]]}},
 
{{SubtiWiki category|[[iron metabolism]]}},
 
{{SubtiWiki category|[[resistance against oxidative and electrophile stress]]}}
 
 
=The protein=
 
=The protein=
  

Revision as of 23:13, 8 December 2010

  • Description: iron storage protein, DNA-binding stress protein, forms highly stable, multimeric protein-DNA complexes which protect against oxidative killing

Gene name mrgA
Synonyms
Essential no
Product mini-ferritin, DNA-binding stress protein
Function iron storage,


protection against oxidative stress

Metabolic function and regulation of this protein in SubtiPathways:
Stress
MW, pI 17 kDa, 4.597
Gene length, protein length 459 bp, 153 aa
Immediate neighbours yusZ, htrB
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
MrgA context.gif
This image was kindly provided by SubtiList







Categories containing this gene/protein

acquisition of iron, iron metabolism, resistance against oxidative and electrophile stress

This gene is a member of the following regulons

PerR regulon

The gene

Basic information

  • Locus tag: BSU32990

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: forms highly stable, multimeric protein-DNA complexes which protect against oxidative killing
  • Protein family: dps family (according to Swiss-Prot)
  • Paralogous protein(s): Dps

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s): contains an iron-sulfur cluster
  • Effectors of protein activity:
  • Interactions:
  • Localization:

Database entries

  • KEGG entry: [3]
  • E.C. number:

Additional information

Expression and regulation

  • Regulation:
  • Regulatory mechanism:
  • Additional information:

Biological materials

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

Labs working on this gene/protein

Your additional remarks

References

Reviews

Original publications

Mayuree Fuangthong, John D Helmann
Recognition of DNA by three ferric uptake regulator (Fur) homologs in Bacillus subtilis.
J Bacteriol: 2003, 185(21);6348-57
[PubMed:14563870] [WorldCat.org] [DOI] (P p)

John D Helmann, Ming Fang Winston Wu, Ahmed Gaballa, Phil A Kobel, Maud M Morshedi, Paul Fawcett, Chris Paddon
The global transcriptional response of Bacillus subtilis to peroxide stress is coordinated by three transcription factors.
J Bacteriol: 2003, 185(1);243-53
[PubMed:12486061] [WorldCat.org] [DOI] (P p)

A F Herbig, J D Helmann
Roles of metal ions and hydrogen peroxide in modulating the interaction of the Bacillus subtilis PerR peroxide regulon repressor with operator DNA.
Mol Microbiol: 2001, 41(4);849-59
[PubMed:11532148] [WorldCat.org] [DOI] (P p)

L Casillas-Martinez, P Setlow
Alkyl hydroperoxide reductase, catalase, MrgA, and superoxide dismutase are not involved in resistance of Bacillus subtilis spores to heat or oxidizing agents.
J Bacteriol: 1997, 179(23);7420-5
[PubMed:9393707] [WorldCat.org] [DOI] (P p)

H Antelmann, S Engelmann, R Schmid, A Sorokin, A Lapidus, M Hecker
Expression of a stress- and starvation-induced dps/pexB-homologous gene is controlled by the alternative sigma factor sigmaB in Bacillus subtilis.
J Bacteriol: 1997, 179(23);7251-6
[PubMed:9393687] [WorldCat.org] [DOI] (P p)

N Bsat, L Chen, J D Helmann
Mutation of the Bacillus subtilis alkyl hydroperoxide reductase (ahpCF) operon reveals compensatory interactions among hydrogen peroxide stress genes.
J Bacteriol: 1996, 178(22);6579-86
[PubMed:8932315] [WorldCat.org] [DOI] (P p)

L Chen, J D Helmann
Bacillus subtilis MrgA is a Dps(PexB) homologue: evidence for metalloregulation of an oxidative-stress gene.
Mol Microbiol: 1995, 18(2);295-300
[PubMed:8709848] [WorldCat.org] [DOI] (P p)

L Chen, L Keramati, J D Helmann
Coordinate regulation of Bacillus subtilis peroxide stress genes by hydrogen peroxide and metal ions.
Proc Natl Acad Sci U S A: 1995, 92(18);8190-4
[PubMed:7667267] [WorldCat.org] [DOI] (P p)

L Chen, L P James, J D Helmann
Metalloregulation in Bacillus subtilis: isolation and characterization of two genes differentially repressed by metal ions.
J Bacteriol: 1993, 175(17);5428-37
[PubMed:8396117] [WorldCat.org] [DOI] (P p)