Mössbauer studies of frataxin role in iron-sulfur cluster assembly and dysfunction-related disease

被引:0
|
作者
Ricardo Garcia-Serres
Martin Clémancey
Jean-Louis Oddou
Annalisa Pastore
Emmanuel Lesuisse
Jean-Marc Latour
机构
[1] Université Joseph Fourier,
[2] CNRS,undefined
[3] UMR5249,undefined
[4] Medical Research Council National Institute for Medical Research,undefined
[5] Laboratoire Mitochondries,undefined
[6] Métaux et Stress oxydant,undefined
[7] Institut Jacques Monod,undefined
[8] CNRS-Université Paris,undefined
[9] CEA,undefined
[10] iRTSV,undefined
[11] LCBM,undefined
来源
Hyperfine Interactions | 2012年 / 206卷
关键词
Mössbauer spectroscopy; Frataxin; Iron sulfur cluster; Iron accumulation;
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学科分类号
摘要
Friedreich ataxia is a disease that is associated with defects in the gene coding for a small protein frataxin. Several different roles have been proposed for the protein, including iron chaperoning and iron storage. Mössbauer spectroscopy was used to probe these hypotheses. Iron accumulation in mutant mitochondria unable to assemble iron sulfur clusters proved to be insensitive to overexpression of frataxin, ruling out its potential involvement as an iron storage protein similar to ferritin. Rather, it was found that frataxin negatively regulates iron sulfur cluster assembly.
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页码:13 / 18
页数:5
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