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Literature DB >> 15894490

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

Mikhail Bogdanov¹, Wei Zhang, Jun Xie, William Dowhan.

Abstract

We provide an overview of lipid-dependent polytopic membrane protein topogenesis, with particular emphasis on 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 the 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 as a function of membrane lipid composition.

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Year: 2005 PMID： 15894490 PMCID： PMC4104023 DOI： 10.1016/j.ymeth.2004.11.002

Source DB: PubMed Journal: Methods ISSN： 1046-2023 Impact factor: 3.608

141 in total

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