نتایج جستجو برای: ژن fxn
تعداد نتایج: 16212 فیلتر نتایج به سال:
BACKGROUND Friedreich's ataxia (FRDA) is the most common hereditary ataxia among caucasians. The molecular defect in FRDA is the trinucleotide GAA expansion in the first intron of the FXN gene, which encodes frataxin. No studies have yet reported frataxin protein and mRNA levels in a large cohort of FRDA patients, carriers and controls. METHODOLOGY/PRINCIPAL FINDINGS We enrolled 24 patients w...
how to cite this article: heidari mm , khatami m, pourakrami j. novel point mutations in frataxin gene in iranian patients with friedreich’s ataxia. iran j child neurol. 2014 winter; 8(1):32-36. objective friedreich’s ataxia is the most common form of hereditary ataxia with autosomal recessive pattern. more than 96% of patients are homozygous for gaa repeat extension on both alleles in the fi...
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Frataxin (FXN) is an α/β protein that plays an essential role in iron homeostasis. Apparently, the function of human FXN (hFXN) depends on the cooperative formation of crucial interactions between helix α1, helix α2, and the C-terminal region (CTR) of the protein. In this work we quantitatively explore these relationships using a purified recombinant fragment hFXN90-195. This variant shows the ...
Background: Friedreich ataxia (FRDA) is an autosomal recessive disorder caused by guanine-adenine-adenine (GAA) triplet expansions in the FXN gene. Its product, frataxin, which severely reduces in FRDA patients, leads to oxidative damage in mitochondria. The purpose of this study was to evaluate the triple nucleotide repeated expansions in Iranian FRDA patients and to elucidate distinguishable ...
background: friedreich ataxia (frda) is an autosomal recessive disorder caused by guanine-adenine-adenine (gaa) triplet expansions in the fxn gene. its product, frataxin, which severely reduces in frda patients, leads to oxidative damage in mitochondria. the purpose of this study was to evaluate the triple nucleotide repeated expansions in iranian frda patients and to elucidate distinguishable ...
Expansion of a GAA · TTC repeat in the first intron of the frataxin (FXN) gene causes an mRNA deficit that results in Friedreich ataxia (FRDA). The region flanking the repeat on FRDA alleles is associated with more extensive DNA methylation than is seen on normal alleles and histone modifications typical of repressed genes. However, whether these changes are responsible for the mRNA deficit is ...
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