Transmembrane protein topology mapping by the substituted cysteine accessibility method (SCAM™):: Application to lipid-specific membrane protein topogenesis

被引:116
作者
Bogdanov, M [1 ]
Zhang, W [1 ]
Xie, J [1 ]
Dowhan, W [1 ]
机构
[1] Univ Texas, Dept Biochem & Mol Biol, Sch Med, Houston, TX 77030 USA
关键词
membrane protein; cysteine scanning; maleimides; phospholipid; topogenesis; phoshatidylethanolamine; protein topology;
D O I
10.1016/j.ymeth.2004.11.002
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
We provide an overview of lipid-dependent polytopic membrane protein topogenesis. with particular emphasis oil Escherichia coli strains genetically altered in their lipid composition and strategies for experimentally determining the transmembrane organization of proteins. A variety of reagents and experimental strategies are described including file use of lipid mutants and thiol-specific chemical reagents to Study lipid-dependent and host-specific membrane protein topogenesis by Substituted cysteine site-directed chemical labeling. Employing strains in which lipid composition can be controlled temporally during membrane protein synthesis and assembly provides a means to observe dynamic changes in protein topology its it function of membrane lipid composition. (c) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:148 / 171
页数:24
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