Plant NBS-LRR proteins in pathogen sensing and host defense

被引：531

作者：

DeYoung, Brody J. ^{[1
]}

Innes, Roger W. ^{[1
]}

机构：

[1] Indiana Univ, Dept Biol, Bloomington, IN 47405 USA

来源：

NATURE IMMUNOLOGY | 2006年 / 7卷 / 12期

关键词：

D O I：

10.1038/ni1410

中图分类号：

R392 [医学免疫学]; Q939.91 [免疫学];

学科分类号：

100102 ;

摘要：

Plant proteins belonging to the nucleotide-binding site-leucine-rich repeat (NBS-LRR) family are used for pathogen detection. Like the mammalian Nod-LRR protein 'sensors' that detect intracellular conserved pathogen-associated molecular patterns, plant NBS-LRR proteins detect pathogen-associated proteins, most often the effector molecules of pathogens responsible for virulence. Many virulence proteins are detected indirectly by plant NBS-LRR proteins from modifications the virulence proteins inflict on host target proteins. However, some NBS-LRR proteins directly bind pathogen proteins. Association with either a modified host protein or a pathogen protein leads to conformational changes in the amino-terminal and LRR domains of plant NBS-LRR proteins. Such conformational alterations are thought to promote the exchange of ADP for ATP by the NBS domain, which activates 'downstream' signaling, by an unknown mechanism, leading to pathogen resistance.

引用

页码：1243 / 1249

页数：7

共 76 条

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