ELECTROSTATIC MODELING OF DIPOLE-ION INTERACTIONS IN GRAMICIDINLIKE CHANNELS

被引：30
|
作者：
SANCHO, M
MARTINEZ, G
机构：
[1] Departamento de Física Aplicada III, Facultad de Física, Universidad Complutense, Madrid
来源：
BIOPHYSICAL JOURNAL | 1991年 / 60卷 / 01期
关键词：
D O I：
10.1016/S0006-3495(91)82032-X
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
Using an electrostatic model for the pore and membrane region in a gramicidinlike channel, the effect of dipoles located inside the membrane on the ion transport are analyzed. Calculated energy profiles for different orientations of dipoles show a predominant influence of their radial components. The results qualitatively agree with experimental measurements of conductance on different modified gramicidins and allow to understand the important role of polar side chains on ion permeation.
引用
收藏
页码：81 / 88
页数：8
相关论文
共 50 条
  • [41] MISCIBILITY ENHANCEMENT VIA ION-ION AND ION-DIPOLE INTERACTIONS
    EISENBERG, A
    SMITH, P
    HARA, M
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1984, 188 (AUG): : 146 - PMSE
  • [42] Electrostatic Ion Thrusters - Towards Predictive Modeling
    Kalentev, O.
    Matyash, K.
    Duras, J.
    Lueskow, K. F.
    Schneider, R.
    Koch, N.
    Schirra, M.
    CONTRIBUTIONS TO PLASMA PHYSICS, 2014, 54 (02) : 235 - 248
  • [43] Spherical Channels for Modeling Atomic Interactions
    Zitnick, C. Lawrence
    Das, Abhishek
    Kolluru, Adeesh
    Lan, Janice
    Shuaibi, Muhammed
    Sriram, Anuroop
    Ulissi, Zachary
    Wood, Brandon
    ADVANCES IN NEURAL INFORMATION PROCESSING SYSTEMS 35 (NEURIPS 2022), 2022,
  • [44] ELECTROSTATIC MODELING OF ION PORES - MULTIPOLAR SOURCES
    VAYL, IS
    JORDAN, PC
    BIOPHYSICAL CHEMISTRY, 1987, 27 (01) : 7 - 13
  • [45] ELECTROSTATIC INTERACTIONS IN GRAMICIDIN CHANNELS - 3-DIELECTRIC MODEL
    MARTINEZ, G
    SANCHO, M
    EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS, 1993, 22 (04): : 301 - 307
  • [46] REFRACTIVE ANALOG FOR MODELING ELECTROSTATIC ION LENSES
    SWEATT, WC
    MILLER, PA
    OPTICAL ENGINEERING, 1991, 30 (05) : 615 - 621
  • [47] Ion-water and water-water interactions in a gramicidinlike channel: Effects due to group polarizability and backbone flexibility
    Duca, KA
    Jordan, PC
    BIOPHYSICAL CHEMISTRY, 1997, 65 (2-3) : 123 - 141
  • [48] Modeling magnetic nanoparticle dipole-dipole interactions inside living cells
    Levy, Michael
    Gazeau, Florence
    Bacri, Jean-Claude
    Wilhelm, Claire
    Devaud, Martin
    PHYSICAL REVIEW B, 2011, 84 (07):
  • [49] A new approach to the selectivity of ion channels: Nonlocal electrostatic consideration
    A. A. Rubashkin
    P. Iserovich
    Doklady Biochemistry and Biophysics, 2007, 417 : 302 - 305
  • [50] Polymeric Materials Based on Ion-dipole Interactions
    Zhang, Yu-cheng
    Chen, Tao
    Wang, Chao
    ACTA POLYMERICA SINICA, 2023, 54 (03): : 303 - 313
12345