Single potassium ion seeks open channel for transmembrane travels: tales from the KcsA structure

被引:3
作者
Gouaux, E [1 ]
机构
[1] Columbia Univ, Dept Biochem & Mol Biophys, New York, NY 10032 USA
来源
STRUCTURE WITH FOLDING & DESIGN | 1998年 / 6卷 / 10期
基金
美国国家卫生研究院; 美国国家科学基金会;
关键词
D O I
10.1016/S0969-2126(98)00122-1
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
Potassium channels selectively catalyze potassium transport across cell membranes. Over the past five decades, a multitude of potassium channel models have been proposed. The recent crystal structure determination of the KcsA potassium channel confirms, corrects and expands our understanding of a fundamental biological catalyst, revealing the basis of exquisite selectivity and near diffusion-limited throughput.
引用
收藏
页码:1221 / 1226
页数:6
相关论文
共 25 条
[1]  
ANDERSEN OS, 1984, ANNU REV PHYSIOL, V46, P531
[3]  
BURKHART BM, 1998, IN PRESS P NATL ACAD
[4]   NEW FOLDS FOR ALL-BETA PROTEINS [J].
CHOTHIA, C ;
MURZIN, AG .
STRUCTURE, 1993, 1 (04) :217-222
[5]   Structural dynamics of the Streptomyces lividans K+ channel (SKC1): Oligomeric stoichiometry and stability [J].
Cortes, DM ;
Perozo, E .
BIOCHEMISTRY, 1997, 36 (33) :10343-10352
[6]   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
[7]  
Duax WL, 1996, BIOPOLYMERS, V40, P141, DOI 10.1002/(SICI)1097-0282(1996)40:1<141::AID-BIP6>3.0.CO
[8]  
2-W
[9]   Crystal structures of various maltooligosaccharides bound to maltoporin reveal a specific sugar translocation pathway [J].
Dutzler, R ;
Wang, YF ;
Rizkallah, PJ ;
Rosenbusch, JP ;
Schirmer, T .
STRUCTURE, 1996, 4 (02) :127-134
[10]   Tetrameric stoichiometry of a prokaryotic K+ channel [J].
Heginbotham, L ;
Odessey, E ;
Miller, C .
BIOCHEMISTRY, 1997, 36 (33) :10335-10342