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Journal Article

Lipid–protein forces predict conformational changes in a mechanosensitive channel

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Daday,  C.
Research Group of Computational Biomolecular Dynamics, MPI for Biophysical Chemistry, Max Planck Society;

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de Groot,  B. L.
Research Group of Computational Biomolecular Dynamics, MPI for biophysical chemistry, Max Planck Society;

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Citation

Daday, C., & de Groot, B. L. (2020). Lipid–protein forces predict conformational changes in a mechanosensitive channel. European Biophysics Journal, In Press. doi:10.1007/s00249-020-01488-z.


Cite as: https://hdl.handle.net/21.11116/0000-0007-E7D8-1
Abstract
The mechanosensitive TREK-2 potassium channel, a member of the K2P family, has essential physiological roles and is, therefore, a pharmaceutical target. A combination of experimental and computational studies have established that of the two known conformations, “up” and “down”, membrane tension directly favors the “up” state, which displays a higher conductance. However, these studies did not reveal the exact mechanism by which the membrane affects the channel conformation. In this work, we show that changes in protein–lipid interaction patterns suffice in predicting this conformational change, and pinpoint potentially important residues involved in this phenomenon.