Bio-beads: An efficient strategy for two-dimensional crystallization of membrane proteins

被引:157
作者
Rigaud, JL
Mosser, G
Lacapere, JJ
Olofsson, A
Levy, D
Ranck, JL
机构
[1] CEA,LRC 8,F-75231 PARIS,FRANCE
[2] CNRS,CTR GENET MOL,F-91190 GIF SUR YVETTE,FRANCE
关键词
D O I
10.1006/jsbi.1997.3848
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
This work establishes the potential of Bio-Beads as a simple alternative to conventional dialysis for removing detergent and for obtaining 2D crystals of integral membrane proteins useful for structure analysis by electron crystallography. Kinetic and equilibrium aspects of removal of different detergents by adsorption onto hydrophobic Bio-Beads SM2 leave been systematically investigated and extended to 2D crystallization of different prototypic membrane proteins, including: (a) Ca2+ ATPase from sarcoplasmic reticulum; (b) melibiose permease from Escherichia coli; (c) cytochrome b(6)f from Chlamydomonas reinhardtii. Different crystals could be produced from all protein preparations, with optical diffraction down to 20-25 Angstrom in negative stain, (C) 1997 Academic Press.
引用
收藏
页码:226 / 235
页数:10
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