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Amphipols: Polymeric surfactants for membrane biology research

Lookup NU author(s): Professor Jeremy Lakey

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Abstract

Membrane proteins classically are handled in aqueous solutions as complexes with detergents. The dissociating character of detergents, combined with the need to maintain an excess of them, frequently results in more or less rapid inactivation of the protein under study. Over the past few years, we have endeavored to develop a novel family of surfactants, dubbed amphipols (APs). APs are amphiphilic polymers that bind to the transmembrane surface of the protein in a noncovalent but, in the absence of a competing surfactant, quasi-irreversible manner. Membrane proteins complexed by APs are in their native state, stable, and they remain water-soluble in the absence of detergent or free APs. An update is presented of the current knowledge about these compounds and their demonstrated or putative uses in membrane biology.


Publication metadata

Author(s): Popot J-L, Berry EA, Charvolin D, Creuzenet C, Ebel C, Engelman DM, Flotenmeyer M, Giusti F, Gohon Y, Herve P, Hong Q, Lakey JH, Leonard K, Shuman HA, Timmins P, Warschawski DE, Zito F, Zoonens M, Pucci B, Tribet C

Publication type: Review

Publication status: Published

Journal: Cellular and Molecular Life Sciences

Year: 2003

Volume: 60

Issue: 8

Pages: 1559-1574

ISSN (print): 1420-682X

ISSN (electronic): 1420-9071

URL: http://dx.doi.org/10.1007/s00018-003-3169-6

DOI: 10.1007/s00018-003-3169-6

PubMed id: 14513831


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