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Mechanosensitivity of ion channels based on protein-lipid interactions Yoshimura K; Sokabe MJ R Soc Interface 2010[Jun]; 7 Suppl 3 (Suppl 3): S307-20Ion channels form a group of membrane proteins that pass ions through a pore beyond the energy barrier of the lipid bilayer. The structure of the transmembrane segment of membrane proteins is influenced by the charges and the hydrophobicity of the surrounding lipids and the pressure on its surface. A mechanosensitive channel is specifically designed to change its conformation in response to changes in the membrane pressure (tension). However, mechanosensitive channels are not the only group that is sensitive to the physical environment of the membrane: voltage-gated channels are also amenable to the lipid environment. In this article, we review the structure and gating mechanisms of the mechanosensitive channels and voltage-gated channels and discuss how their functions are affected by the physical properties of the lipid bilayer.|Ion Channel Gating/*physiology[MESH]|Ion Channels/*metabolism/physiology[MESH]|Lipid Metabolism/*physiology[MESH]|Mechanotransduction, Cellular/*physiology[MESH]|Membrane Proteins/*metabolism[MESH]|Models, Molecular[MESH]|Protein Conformation[MESH] |
