The possible role of an [FeFe]-hydrogenase-like protein in the plant responses to changing atmospheric oxygen levels

被引：21

作者：

Cavazza, Christine ^{[1
]}

Martin, Lydie ^{[1
]}

Mondy, Samuel ^{[2
]}

Gaillard, Jacques ^{[3
]}

Ratet, Pascal ^{[2
]}

Fontecilla-Camps, Juan C. ^{[1
]}

机构：

[1] Univ Grenoble 1, CNRS, Cristallog & Cristallogenese Prot Lab, Inst Biol Struct Jean Pierre Ebel,CEA, F-38027 Grenoble 1, France

[2] CNRS, Inst Sci Vegetal, F-91198 Gif Sur Yvette, France

[3] Univ Grenoble 1, Dept Rech Fondamentale Mat Condensee, Serv Chim Inorgan & Biol, CEA, F-38052 Grenoble, France

来源：

JOURNAL OF INORGANIC BIOCHEMISTRY | 2008年 / 102卷 / 5-6期

关键词：

IOP1; nar1; iron-sulfur protein; Arabidopsis thaliana;

D O I：

10.1016/j.jinorgbio.2008.01.027

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The knockdown of a [FeFe]-hydrogenase-like gene in the model plants Medicago truncatula and Arabidopsis thaliana resulted in a mutant with a dwarf phenotype. Surprisingly, the phenotype is undistinguishable from wild type under hypoxic conditions. The heterologous expression of the plant gene in Escherichia coli indicates that the resulting protein probably coordinates two [Fe-S] clusters with different magnetic properties. Sequence alignment analysis indicates that these two clusters would be topologically equivalent to the mesial and proximal [Fe-S] centers of [FeFe]-hydrogenases. A possible role of the gene product in oxygen signaling pathways is discussed. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：1359 / 1365

页数：7

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