Energetic role of the paddle motif in voltage gating of Shaker K+ channels

被引:0
|
作者
Yanping Xu
Yajamana Ramu
Hyeon-Gyu Shin
Jayden Yamakaze
Zhe Lu
机构
[1] Howard Hughes Medical Institute,Department of Physiology
[2] University of Pennsylvania Perelman School of Medicine,undefined
来源
关键词
D O I
暂无
中图分类号
学科分类号
摘要
In voltage-gated ion channels, transmembrane segments S3 and S4 are involved in voltage sensing and adopt a helix-turn-helix conformation, called the paddle motif, in crystal structures. Now extensive mutagenesis and electrophysiology analyses of the Shaker K+ channel demonstrate the physiological relevance of the paddle motif and dissect the roles of each segment in voltage sensing.
引用
收藏
页码:574 / 581
页数:7
相关论文
共 50 条
  • [1] Energetic role of the paddle motif in voltage gating of Shaker K+ channels
    Xu, Yanping
    Ramu, Yajamana
    Shin, Hyeon-Gyu
    Yamakaze, Jayden
    Lu, Zhe
    NATURE STRUCTURAL & MOLECULAR BIOLOGY, 2013, 20 (05) : 574 - +
  • [2] A ROLE FOR HYDROPHOBIC RESIDUES IN THE VOLTAGE-DEPENDENT GATING OF SHAKER K+ CHANNELS
    MCCORMACK, K
    TANOUYE, MA
    IVERSON, LE
    LIN, JW
    RAMASWAMI, M
    MCCORMACK, T
    CAMPANELLI, JT
    MATHEW, MK
    RUDY, B
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1991, 88 (07) : 2931 - 2935
  • [3] Voltage gating of shaker K+ channels -: The effect of temperature on ionic and gating currents
    Rodríguez, BM
    Sigg, D
    Bezanilla, F
    JOURNAL OF GENERAL PHYSIOLOGY, 1998, 112 (02): : 223 - 242
  • [4] Extent of voltage sensor movement during gating of Shaker K+ channels
    Posson, David J.
    Selvin, Paul R.
    NEURON, 2008, 59 (01) : 98 - 109
  • [5] GATING CURRENT FLUCTUATIONS IN SHAKER K+ CHANNELS
    YANG, Y
    SIGWORTH, FJ
    BIOPHYSICAL JOURNAL, 1994, 66 (02) : A22 - A22
  • [6] GATING OF SHAKER K+ CHANNELS .1. IONIC AND GATING CURRENTS
    STEFANI, E
    TORO, L
    PEROZO, E
    BEZANILLA, F
    BIOPHYSICAL JOURNAL, 1994, 66 (04) : 996 - 1010
  • [7] Voltage sensing in jellyfish Shaker K+ channels
    Grigoriev, NG
    Spafford, JD
    Gallin, WJ
    Spencer, AN
    JOURNAL OF EXPERIMENTAL BIOLOGY, 1997, 200 (22): : 2919 - 2926
  • [8] GATING CURRENTS FROM NONCONDUCTING, NONINACTIVATING SHAKER K+ CHANNELS
    PEROZO, E
    MACKINNON, R
    STEFANI, E
    BEZANILLA, F
    FASEB JOURNAL, 1992, 6 (01): : A426 - A426
  • [9] Models of gating current fluctuations in Shaker K+ channels.
    Yang, Y
    Sigworth, FJ
    BIOPHYSICAL JOURNAL, 1997, 72 (02) : TUPM9 - TUPM9
  • [10] In vivo functional role of the Drosophila Hyperkinetic a subunit in gating and inactivation of Shaker K+ channels
    Wang, J. W.
    Wu, C.-F.
    Biophysical Journal, 1996, 71 (06)