The ATP switch model for ABC transporters

被引:602
作者
Higgins, CF [1 ]
Linton, KJ [1 ]
机构
[1] MRC, Ctr Clin Sci, London W12 0NN, England
基金
英国医学研究理事会;
关键词
D O I
10.1038/nsmb836
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
ABC transporters mediate active translocation of a diverse range of molecules across all cell membranes. They comprise two nucleotide-binding domains (NBDs) and two transmembrane domains (TMDs). Recent biochemical, structural and genetic studies have led to the ATP-switch model in which ATP binding and ATP hydrolysis, respectively, induce formation and dissociation of an NBD dimer. This provides an exquisitely regulated switch that induces conformational changes in the TMDs to mediate membrane transport.
引用
收藏
页码:918 / 926
页数:9
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