Novel method for evaluation of the oligomeric structure of membrane proteins

被引:122
作者
Ramjeesingh, M [1 ]
Huan, LJ [1 ]
Garami, E [1 ]
Bear, CE [1 ]
机构
[1] Hosp Sick Children, Res Inst, Dept Cell Biol, Toronto, ON M5G 1X8, Canada
关键词
ion channels; multimeric complexes; quaternary structure; SDS/PAGE;
D O I
10.1042/0264-6021:3420119
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
Assessment of the quaternary structure of membrane proteins by PAGE has been problematic owing to their relatively poor solubility in non-dissociative detergents. Here we report that several membrane proteins can be readily solubilized in their native quaternary structure with the use of the detergent perfluoro-octanoic acid (PFO). Further, PFO can be used with PAGE, thereby providing a novel, accessible tool with which to assess the molecular mass of homo-multimeric protein complexes.
引用
收藏
页码:119 / 123
页数:5
相关论文
共 17 条
[1]  
CASEY JR, 1991, J BIOL CHEM, V266, P15726
[2]   The structure of the potassium channel:: Molecular basis of K+ conduction and selectivity [J].
Doyle, DA ;
Cabral, JM ;
Pfuetzner, RA ;
Kuo, AL ;
Gulbis, JM ;
Cohen, SL ;
Chait, BT ;
MacKinnon, R .
SCIENCE, 1998, 280 (5360) :69-77
[3]   CLEAVAGE OF STRUCTURAL PROTEINS DURING ASSEMBLY OF HEAD OF BACTERIOPHAGE-T4 [J].
LAEMMLI, UK .
NATURE, 1970, 227 (5259) :680-+
[4]   Oligomerization state of water channels and glycerol facilitators -: Involvement of loop E [J].
Lagrée, V ;
Froger, A ;
Deschamps, S ;
Pellerin, I ;
Delamarche, C ;
Bonnec, G ;
Gouranton, J ;
Thomas, D ;
Hubert, JF .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1998, 273 (51) :33949-33953
[5]  
LOW PS, 1991, BLOOD, V77, P1581
[6]   Which GABA(A)-receptor subtypes really occur in the brain? [J].
McKernan, RM ;
Whiting, PJ .
TRENDS IN NEUROSCIENCES, 1996, 19 (04) :139-143
[7]  
NAGAMATSU S, 1992, J BIOL CHEM, V267, P467
[9]   A novel procedure for the efficient purification of the cystic fibrosis transmembrane conductance regulator (CFTR) [J].
Ramjeesingh, M ;
Li, CH ;
Garami, E ;
Huan, LJ ;
Hewryk, M ;
Wang, YC ;
Galley, K ;
Bear, CE .
BIOCHEMICAL JOURNAL, 1997, 327 :17-21
[10]   ANALYSIS OF MOLECULAR MASSES AND OLIGOMERIC STATES OF PROTEIN COMPLEXES BY BLUE NATIVE ELECTROPHORESIS AND ISOLATION OF MEMBRANE-PROTEIN COMPLEXES BY 2-DIMENSIONAL NATIVE ELECTROPHORESIS [J].
SCHAGGER, H ;
CRAMER, WA ;
VONJAGOW, G .
ANALYTICAL BIOCHEMISTRY, 1994, 217 (02) :220-230