2BJO image
Deposition Date 2005-02-04
Release Date 2006-03-09
Last Version Date 2024-11-13
Entry Detail
PDB ID:
2BJO
Keywords:
OXIDOREDUCTASE
Title:
Crystal Structure of the Organic Hydroperoxide Resistance Protein OhrB of Bacillus subtilis
Biological Source:
Source Organism:
BACILLUS SUBTILIS (Taxon ID: 1423)
Host Organism:
ESCHERICHIA COLI
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.10 Å
R-Value Free:
0.19
R-Value Work:
0.15
R-Value Observed:
0.16
Space Group:
P 1
2BJO validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:ORGANIC HYDROPEROXIDE RESISTANCE PROTEIN OHRB
Gene (Uniprot):ohrB
Mutagens:YES
Chain IDs:A, B
Chain Length:136
Number of Molecules:2
Biological Source:BACILLUS SUBTILIS
UniProt ID:P80242 Pfam ID:PF02566
Primary Citation
Structure of the Bacillus Subtilis Ohrb Hydroperoxide-Resistance Protein in a Fully Oxidized State.
Acta Crystallogr.,Sect.D 63 1269 ? (2007)
PMID: 18084074 DOI: 10.1107/S0907444907050226

Abstact

The crystal structure of the fully oxidized form of the Bacillus subtilis organic hydroperoxide-resistance (OhrB) protein is reported at 2.1 A resolution. The electron density reveals an intact catalytic disulfide bond (Cys55-Cys119) in each of the two molecules, which are intertwined into a canonical obligate dimer. However, the stereochemistry of the disulfides is unorthodox and strained, suggesting that they are sensitive to reducing agents. A deep solvent-accessible gorge reaching Cys55 may represent the access route for the reductant.

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Primary Citation of related structures
2BJO