Article
Analysis of mutations that alter HO sensing and transcription regulation properties of a global peroxide regulator OxyR in Xanthomonas campestris pv. phaseoli.
FEMS microbiology letters - 1 Apr 2006
Whangsuk Wirongrong, Mongkolsuk Skorn
Abstract excerpt
OxyR5, from a Xanthomonas campestris pv. phaseoli H(2)O(2)-resistant mutant, contains the two mutations G197D and L301R. The protein exists in its oxidized-like form in the absence of oxidants as judged by the protein's ability to activate the ahpC promoter. Analysis of DNase I footprint patterns indicates that under reducing conditions OxyR5 and OxyRG197D bind to the target site in the ahpC promoter in a manner...
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