Interhelical Packing in Detergent Micelles
Interhelical Packing in Detergent Micelles
复制标题
洗涤剂胶束中的螺旋间堆积
DOI:
10.1074/jbc.m110264200
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
C. Deber
中科院分区:
文献类型:
--
作者:
A. Therien;C. Deber
Using a helix-loop-helix construct consisting of the adjacent transmembrane segments 3 and 4 of the cystic fibrosis transmembrane conductance regulator (CFTR) labeled with pyrene at both N and C termini, we describe a system for the study of intramolecular helix-helix interactions within a polytopic membrane protein. Through measurement of pyrene excimer band intensity as a determinant of helix-helix proximity, we show that the helices retain tertiary contacts in detergent micelles. Notably, the nature of the micellar detergent can alter the stability of these contacts, with perfluorooctanoate highly supportive, lysophosphatidylcholine and lysophosphatidylglycerol somewhat less tolerant, and SDS largely intolerant of such interactions. This construct is further employed to study the role of the acyl chain length of micellar detergents in modulating interhelical packing; detergents having acyl chains of 9 carbons display the greatest extent of helical packing. These results provide important information regarding the role of lipids on membrane protein folding and conformation as well as demonstrate the usefulness of a pyrene-based system in studying the forces that govern interhelical packing.
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影响因子:
2.9
作者:
Xie,H;Ding,FX;Schreiber,D;Eng,G;Liu,SF;Arshava,B;Arevalo,E;Becker,JM;Naider,F
通讯作者:
Naider,F
DOI:
10.1016/s0021-9258(19)70290-7
发表时间:
1980-12
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
P. Graceffa;S. Lehrer
通讯作者:
P. Graceffa;S. Lehrer
影响因子:
56.9
作者:
J. Riordan;J. Rommens;N. Alon;R. Rozmahel;Z. Grzelczak;J. Zieleński;N. Plavsic;Jia-Ling Chou
通讯作者:
J. Riordan;J. Rommens;N. Alon;R. Rozmahel;Z. Grzelczak;J. Zieleński;N. Plavsic;Jia-Ling Chou
DOI:
10.1007/978-1-4899-1727-0_5
发表时间:
1995
期刊:
Sub-cellular biochemistry.
影响因子:
--
作者:
Lehrer,SS
通讯作者:
Lehrer,SS
DOI:
10.1021/bi972293n
发表时间:
1998
期刊:
Biochemistry.
影响因子:
--
作者:
Wigley,WC;Vijayakumar,S;Jones,JD;Slaughter,C;Thomas,PJ
通讯作者:
Thomas,PJ