We perform the density functional theory and Brownian dynamics simulations based on the three-dimensional structure of the WT KcsA channel and its mutants. Our data suggest that the electrostatic interactions between the channels and cations, within the signature sequence of K+ channels, determine the selectivity of the channel.
We perform the density functional theory and Brownian dynamics simulations based on the three-dimensional structure of the WT KcsA channel and its mutants. Our data suggest that the electrostatic interactions between the channels and cations, within the signature sequence of K+ channels, determine the selectivity of the channel.
LIU Yu-Zhi;AN Hai-Long;ZHANG Su-Hua;YU Hui;ZHAN Yong;ZHANG Hai-Lin. Electrostatic Interactions Determining the Selectivity of KcsA Channel and Its Mutants[J]. 中国物理快报, 2010, 27(8): 88701-088701.
LIU Yu-Zhi, AN Hai-Long, ZHANG Su-Hua, YU Hui, ZHAN Yong, ZHANG Hai-Lin. Electrostatic Interactions Determining the Selectivity of KcsA Channel and Its Mutants. Chin. Phys. Lett., 2010, 27(8): 88701-088701.
[1] Doyle D A, Morais Cabral J, Pfuetzner R A, Kuo A, Gulbis J M, Cohen S L, Chait B T and MacKinnon R 1998 Science 280 69 [2] Aqvist J and Luzhkov V 2000 Nature 404 881 [3] Berneche S and Roux B 2000 Biophys. J. 78 2900 [4] Baker K A, Tzitzilonis C, Kwiatkowski W, Choe S and Riek R 2007 Nat. Struct. Mol. Biol. 14 1089 [5] Miloshevsky G and Jordan P 2008 Biophys J. 95 3239 [6] Domene C and Furini S 2009 J. Mol. Biol. 389 637 [7] Francis I, Leonetti M, Muir T and MacKinnon R 2006 Science 314 1004 [8] An H L, Zhan Y, Zhang S H, Zhao T J and Liu J W 2005 Prog. Biochem. Biophys. 32 168 (in Chinese) [9] Zhan Y, An H L, Yu H and Zhang S H 2006 Chin. Phys. Lett. 23 2906 [10] An H L, Liu Y Z, Zhang S H, Zhan Y and Zhang H L 2008 Chin. Phys. Lett. 25 3165 [11] Yang K, Wang C L, Li J C, Zhang C, Wu Q Z, Zhang Y, Yin N F and Liu X Y 2006 Chin. Phys. 15 1580 [12] Xie Z, MA Q M, Liu Y and Li Y C 2008 Chin. Phys. Lett. 25 1270 [13] Sheng Y, Mao H P and Tu M J 2008 Acta Phys. Sin. 57 4153 (in Chinese) [14] Frisch M J et al 2003 Gaussian Inc. Pittsburgh PA [15] Heginbotham L, Lu Z, Abramson T and Mackinnon R 1994 Biophys. 66 1061 [16] Chapman M, Krovetz H and VanDongen A 2001 J. Physiol. 530 21
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