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Grf10 regulates the response to copper, iron, and phosphate in Candida albicans.

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Candida albicans

PROVIDER: GSE223218 | GEO | 2023/03/20

REPOSITORIES: GEO

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Grf10 regulates the response to copper, iron, and phosphate in Candida albicans.

Project description:The pathogenic yeast, Candida albicans, and other microbes must be able to handle drastic changes in nutrient availability within the human host. Copper, iron, and phosphate are essential micronutrients for microbes that are sequestered by the human host as nutritional immunity; yet high copper levels are employed by macrophages to induce toxic oxidative stress. Grf10 is a transcription factor important for regulating genes involved in morphogenesis (filamentation, chlamydospore formation) and metabolism (adenylate biosynthesis, 1-carbon metabolism). The grf10Δ mutant exhibited resistance to excess copper in a gene dosage-dependent manner but grew the same as the wild type in response to other metals (calcium, cobalt, iron, manganese, and zinc). Point mutations in the conserved residues D302 and E305, within a protein interaction region, conferred resistance to high copper and induced hyphal formation similar to strains with the null allele. The grf10Δ mutant misregulated genes involved with copper, iron, and phosphate uptake in YPD medium and mounted a normal transcriptional response to high copper. The mutant accumulated lower levels of magnesium and phosphorus, suggesting that copper resistance is linked to phosphate metabolism. Our results highlight new roles for Grf10 in copper and phosphate homeostasis in C. albicans and underscore the fundamental role of Grf10 in connecting these with cell survival.

| S-EPMC10234403 | biostudies-literature

Grf10 regulates the response to copper, iron, and phosphate in Candida albicans.

Project description:Grf10 regulates the response to copper, iron, and phosphate in Candida albicans.

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