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• W2094352940 abstract "Background & Aims Hereditary iron overload associated with mutations in the ferroportin gene produces a dichotomy of phenotypes resulting from either increase or decrease in iron efflux capacity. In this study, we examined the molecular basis of iron overload in a family of Vietnamese origin, characterized the molecular and cellular defect, and correlated it with the clinical and pathological phenotype. Methods We analyzed the ferroportin gene by DNA sequencing. The molecular characterization was performed by immunofluorescence microscopy analysis of transfected cells. We analyzed ferritin levels, in cells expressing wild-type and mutant ferroportin, to define the nature of the molecular defect in iron transport. Results We identified a G to A nucleotide change at position 238 in the ferroportin gene leading to the G80S substitution. Cellular analysis of the mutant protein indicates that this amino acid change does not affect the localization of the protein but does affect its ability to transport iron. Conclusions The G80S mutation results in a mutated ferroportin associated with iron overload and is predicted to be defective in iron export. Hereditary iron overload associated with mutations in the ferroportin gene produces a dichotomy of phenotypes resulting from either increase or decrease in iron efflux capacity. In this study, we examined the molecular basis of iron overload in a family of Vietnamese origin, characterized the molecular and cellular defect, and correlated it with the clinical and pathological phenotype. We analyzed the ferroportin gene by DNA sequencing. The molecular characterization was performed by immunofluorescence microscopy analysis of transfected cells. We analyzed ferritin levels, in cells expressing wild-type and mutant ferroportin, to define the nature of the molecular defect in iron transport. We identified a G to A nucleotide change at position 238 in the ferroportin gene leading to the G80S substitution. Cellular analysis of the mutant protein indicates that this amino acid change does not affect the localization of the protein but does affect its ability to transport iron. The G80S mutation results in a mutated ferroportin associated with iron overload and is predicted to be defective in iron export." @default.
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• W2094352940 date "2011-03-01" @default.
• W2094352940 modified "2023-10-06" @default.
• W2094352940 title "G80S-linked ferroportin disease: Classical ferroportin disease in an Asian family and reclassification of the mutant as iron transport defective" @default.
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• W2094352940 doi "https://doi.org/10.1016/j.jhep.2010.07.048" @default.
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