Free‐Energy Landscapes of Ion Movement through a G‐Quadruplex DNA Channel | Zendy

Akhshi Parisa | Zendy; Mosey Nicholas J. | Zendy; Wu Gang | Zendy

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Free‐Energy Landscapes of Ion Movement through a G‐Quadruplex DNA Channel

Author(s) -

Akhshi Parisa,

Mosey Nicholas J.,

Wu Gang

Publication year - 2012

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201107700

Subject(s) - ion , g quadruplex , movement (music) , molecular dynamics , energy landscape , channel (broadcasting) , dna , energy (signal processing) , ion channel , materials science , nanotechnology , atomic physics , chemistry , physics , computer science , computational chemistry , telecommunications , acoustics , biochemistry , receptor , organic chemistry , quantum mechanics

How easily can ions move in DNA channels? Three‐dimensional free‐energy landscapes for the movement of Na + , K + , and NH 4 + ions through G‐quadruplex DNA channels have been obtained by molecular dynamics simulations. The computed results are in qualitative agreement with the limited experimental data: large K + and NH 4 + ions squeeze through the G‐quartets with some difficulty, while Na + ions pass through with less impedance.

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