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• W2113250534 endingPage "591" @default.
• W2113250534 startingPage "581" @default.
• W2113250534 abstract "Cryptococcus neoformans is a pathogenic basidiomycete that causes meningitis in immunocompromised patients. In this paper, we demonstrate that a previously described oxidant-sensitive mutant, oxy1, has constitutive ferric reductase and iron uptake, similar to a ferric reductase regulatory mutant, frr1. Through meiotic genetic analysis, we show that the two mutations are allelic. By complementation of frr1 with a genomic library, we isolated a gene, MRS3/4. The encoded protein is a putative solute transporter of the inner mitochondrial membrane. Disruption of this gene led to high ferric reductase, iron uptake and iron content, as well as increased sensitivity to hydrogen peroxide and slow growth in low iron medium. The disrupted gene is allelic with oxy1 and frr1. We sequenced the oxy1 and frr1 alleles of MRS3/4 and found that the frr1 mutation results in a premature stop codon, while the oxy1 mutation results in the substitution of a highly conserved glutamate residue with lysine. The Mrs3/4 protein appears to be involved in mitochondrial iron transport in eukaryotes. Resistance to strong oxidants requires stringent control of iron metabolism." @default.
• W2113250534 created "2016-06-24" @default.
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• W2113250534 date "2002-01-01" @default.
• W2113250534 modified "2023-10-16" @default.
• W2113250534 title "Role of Mitochondrial Carrier Protein Mrs3/4 in Iron Acquisition and Oxidative Stress Resistance of<i>Cryptococcus neoformans</i>" @default.
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• W2113250534 doi "https://doi.org/10.1080/mmy.40.6.581.591" @default.
• W2113250534 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/12521122" @default.
• W2113250534 hasPublicationYear "2002" @default.
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