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
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

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)