Glutaredoxins: roles in iron homeostasis.

Glutaredoxins: roles in iron homeostasis.
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DOI:
10.1016/j.tibs.2009.08.005
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发表时间:
2010-01
影响因子:
13.8
通讯作者:
Jacquot, Jean-Pierre
Jacquot, Jean-Pierre
中科院分区:
生物学1区
文献类型:
--
作者:
Rouhier, Nicolas;Couturier, Jeremy;Johnson, Michael K.;Jacquot, Jean-Pierre

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Glutaredoxins是一种传统上参与氧化还原反应的蛋白质,也是铁硫簇组装和血红素生物合成所必需的。这些新的作用可能与一些glutaredoxins结合不稳定的[2Fe-2S]簇并将其快速有效地转移到受体蛋白的能力有关。最近的研究结果表明,glutaredo毒素在细胞铁和铁硫团簇生物发生中的作用,可能是作为铁硫团簇重新合成的支架蛋白,也可能是作为预先形成的铁硫团簇转移的载体蛋白。基于原核生物基因组分析和酵母体内铁调控的研究,我们提出了glutaredoxins在金属蛋白组装中的新作用和结合伙伴。
Glutaredoxins, proteins traditionally involved in redox reactions, are also required for iron–sulphur cluster assembly and haem biosynthesis. These new roles are likely related to the ability of some glutaredoxins to bind labile [2Fe–2S] clusters and to transfer them rapidly and efficiently to acceptor proteins. Recent results point to putative roles for glutaredoxins in the sensing of cellular iron and in iron–sulphur cluster biogenesis, either as scaffold proteins for the de novo synthesis of iron–sulphur clusters or as carrier proteins for the transfer of preformed iron–sulphur clusters. Based on prokaryote genome analysis and in vivo studies of iron regulation in yeast, we propose putative new roles and binding partners for glutaredoxins in the assembly of metalloproteins.
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