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OxyR protein

In E. coli catalases are up-regulated by the redox-sensitive oxyR protein, which in its oxidized state binds to AREs, while up-regulation of SODs involves soxR and soxS gene products [69]. [Pg.137]

In addition, a genetically encoded ratiometric sensor for H2O2 is now available. This probe, named HyPer, incorporates a YEP variant into the prokaryotic H2O2-sensing protein (OxyR) and was used successfully to monitor the formation of H2O2 in single mitochondria within a living cell [8]. [Pg.101]

Transcriptional regulation of antioxidant proteins. Certain proteins with easily accessible Fe-S clusters, e.g., aconitase, are readily inachvated by oxidants such as perox5mitrite. At least two proteins of this type function as transcription factors in E. coli. These are known as SoxR and OxyR. The SoxR protein is sensihve to superoxide anion, which carries out a one-electron oxidahon on its Fe2S2 centers. ... [Pg.141]

See other pages where OxyR protein is mentioned: [Pg.310]    [Pg.1075]    [Pg.162]    [Pg.444]    [Pg.178]    [Pg.141]    [Pg.175]    [Pg.310]    [Pg.1075]    [Pg.162]    [Pg.444]    [Pg.178]    [Pg.141]    [Pg.175]    [Pg.1099]    [Pg.112]    [Pg.282]    [Pg.408]    [Pg.1357]    [Pg.1689]    [Pg.205]    [Pg.107]    [Pg.1099]    [Pg.207]    [Pg.324]    [Pg.265]    [Pg.179]    [Pg.183]    [Pg.168]    [Pg.84]    [Pg.49]   
See also in sourсe #XX -- [ Pg.1075 ]

See also in sourсe #XX -- [ Pg.178 , Pg.180 , Pg.296 ]



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