Conversion of Bacillus subtilis OhrR from a 1-Cys to a 2-Cys peroxide sensor.

@article{Soonsanga2008ConversionOB,
  title={Conversion of Bacillus subtilis OhrR from a 1-Cys to a 2-Cys peroxide sensor.},
  author={Sumarin Soonsanga and Jin-won Lee and John D. Helmann},
  journal={Journal of bacteriology},
  year={2008},
  volume={190 17},
  pages={5738-45}
}
OhrR proteins can be divided into two groups based on their inactivation mechanism: 1-Cys (represented by Bacillus subtilis OhrR) and 2-Cys (represented by Xanthomonas campestris OhrR). A conserved cysteine residue near the amino terminus is present in both groups of proteins and is initially oxidized to the sulfenic acid. The B. subtilis 1-Cys OhrR protein is subsequently inactivated by formation of a mixed-disulfide bond with low-molecular-weight thiols or by cysteine overoxidation to… CONTINUE READING
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