《生命科学》 2011, 23(10): 945-950

植物PDR蛋白转运机制及功能的研究进展

谢小雷¹，张　儒^{1， 2}，谭小宁¹，罗志勇^1*

(1 中南大学生物科学与技术学院分子生物学系&分子生物学研究中心，长沙 410078；2 湖南工程学院化学化工学院，湘潭 411104)

摘　要：

摘　要：植物多向耐药性(pleiotropic drug resistance， PDR) 基因亚家族是ATP 结合盒(ATP-binding cassette， ABC) 基因家族的一员，其编码的PDR 蛋白通过水解ATP 释放能量、引起蛋白构象变化实现物质跨膜转运。 PDR 蛋白可以转运萜类物质、植物生长素和金属离子以应答外界生物和非生物胁迫。综述植物PDR 蛋白结构、转运机制及其功能，为克隆植物PDR 基因并深入研究其结构与功能提供基础知识。
关键词：植物PDR 蛋白；转运机制；次生代谢产物；防御反应
中图分类号： Q51 文献标志码：A

    

 

The progress of research on transfer mechanism and function of the plant PDR

XIE Xiao-Lei¹， ZHANG Ru^1，2， TAN Xiao-Ning¹， LUO Zhi-Yong^1*

(1 Molecular Biology Research Center&Department of Molecular Biology， School of Biological Science and Technology，Central South University， Changsha 410078， China; 2 College of Chemistry and Chemical Engineering， Hunan Institute of Engineering， Xiangtan 411104， China)

Abstract:

Abstract: The plant pleiotropic drug resistance (PDR) gene subfamily is one of ATP-binding cassette (ABC) gene family members， its encoding PDR protein can get energy from hydrolyzing ATP and transport substrates through membrane by protein conformational change. PDR protein transport terpenoids， plant auxin and metal ion in responses to the biotic and abiotic stress. In this review， we summarize the plant PDR protein structure， transfer mechanism and function， these provide important knowledge for cloning PDR gene and further studying on its
structure and function.
Key words: plant PDR protein; transfer mechanism; secondary metabolites; defense response