OhrB

• Description: general stress protein
  
  

Gene name	ohrB
Synonyms	yzzE, ykzA
Essential	no
Product	unknown
Function	organic peroxide resistance
Gene expression levels in SubtiExpress: ohrB
MW, pI	14 kDa, 4.735
Gene length, protein length	408 bp, 136 aa
Immediate neighbours	ohrR, ykzN
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

general stress proteins (controlled by SigB), resistance against oxidative and electrophile stress

This gene is a member of the following regulons

SigB regulon

The gene

Basic information

• Locus tag: BSU13160

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: osmC/ohr family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification: Cys55-Cys119 form catalytic disulfide bond PubMed

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure: 2BJO

• UniProt: P80242

• KEGG entry: [3]

• E.C. number:

Additional information

• subject to Clp-dependent proteolysis upon glucose starvation PubMed

Expression and regulation

• Operon: ohrB PubMed

• Expression browser: ohrB PubMed

• Sigma factor: SigB PubMed

• Regulation:
  • induced by stress (SigB) PubMed

• Regulatory mechanism:

• Additional information:
  • subject to Clp-dependent proteolysis upon glucose starvation PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

David R Cooper, Yogesh Surendranath, Yancho Devedjiev, Jakub Bielnicki, Zygmunt S Derewenda
Structure of the Bacillus subtilis OhrB hydroperoxide-resistance protein in a fully oxidized state.
Acta Crystallogr D Biol Crystallogr: 2007, 63(Pt 12);1269-73
[PubMed:18084074] [WorldCat.org] [DOI] (P p)

Dirk Höper, Uwe Völker, Michael Hecker
Comprehensive characterization of the contribution of individual SigB-dependent general stress genes to stress resistance of Bacillus subtilis.
J Bacteriol: 2005, 187(8);2810-26
[PubMed:15805528] [WorldCat.org] [DOI] (P p)

M Fuangthong, S Atichartpongkul, S Mongkolsuk, J D Helmann
OhrR is a repressor of ohrA, a key organic hydroperoxide resistance determinant in Bacillus subtilis.
J Bacteriol: 2001, 183(14);4134-41
[PubMed:11418552] [WorldCat.org] [DOI] (P p)

U Völker, K K Andersen, H Antelmann, K M Devine, M Hecker
One of two osmC homologs in Bacillus subtilis is part of the sigmaB-dependent general stress regulon.
J Bacteriol: 1998, 180(16);4212-8
[PubMed:9696771] [WorldCat.org] [DOI] (P p)