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. 2004 Sep;43(3):219-22.
doi: 10.1007/s00411-004-0253-8. Epub 2004 Sep 14.

Does UVB radiation induce SoxS gene expression in Escherichia coli cells?

A A Gomes  1 , L M B O Asad, I Felzenszwalb, A C Leitão, A B Silva, H C R Guillobel, N R Asad
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Does UVB radiation induce SoxS gene expression in Escherichia coli cells?

A A Gomes et al. Radiat Environ Biophys. 2004 Sep.

Abstract

The SoxRS regulon is induced when bacterial cells are exposed to redox-cycling agents such as menadione or paraquat. In this paper it is shown that a physical agent, such as ultraviolet radiation with a wavelength of 312 nm (UVB) can induce soxS gene expression. The results indicate that this induction involves the RpoS protein. Moreover, an unexpected increase of soxS gene expression independent of a functional soxR gene in UVB-irradiated cells has been verified. This increase could be explained by transcription of soxS gene in a rpoS-dependent pathway.

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