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PerR is a ferric uptake repressor (Fur) homolog that functions as the central regulator of the inducible peroxide stress response in Bacillus subtilis. PerR has been previously demonstrated to regulate the mrgA, katA, ahpCF, hemAXCDBL, and zosA genes. We now demonstrate that PerR also mediates both the repression of its own gene and that of fur.

Sep 18, 2024 · PerR is a Fur family transcriptional regulator that senses peroxide stress. Metal-bound PerR (either Mn 2+ or Fe 2+) can repress transcription of its regulon, but only the Fe 2+ -bound form of PerR can sense H 2 O 2. This review describes different aspects of PerR and its varied roles, specifically in bacterial pathogens.

Metal-bound PerR (either Mn 2+ or Fe 2+) can repress transcription of its regulon, but only the Fe 2+ -bound form of PerR can sense H 2 O 2. This review describes different aspects of PerR and its varied roles, specifically in bacterial pathogens.

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Sep 2, 2022 · Ferric uptake regulator (Fur) and Fur-like proteins form an important family of transcriptional regulators in many bacterial species. In this work we have characterized a Fur-like protein, the peroxide regulator PerR, in an M1 serotype of Streptococcus pyogenes.

Hydrogen and organic peroxide sensor. Represses the expression of a regulon of peroxide-inducible genes such as katA, ahpC, ahpF, the heme biosynthesis operon (hemAXCDBL), fur, …

Here, we provide evidence that the perR strain is iron starved and that the resulting growth defect can be alleviated by the derepression of iron uptake pathways (controlled by Fur) and elimination of the heme sequestration activity of catalase.

Apr 15, 2021 · Proteins belonging to the FUR (ferric uptake regulator) family are the cornerstone of metalloregulation in most prokaryotes. Although numerous reviews have been devoted to these proteins, these reports are mainly focused on the Fur paralog that gives name to the family.