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2024
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09
Tsinghua University Xiao Bailong/Peking University Ouyang Kunfu Collaboration Reveals Key Phosphorylation Sites That Regulate Piezo1 Mechanical Sensitivity and Mechanotransduction Function in Vivo
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Piezo1 is a mechanically activated cation channel that can convert mechanical forces into various physiological processes.Due to its large protein size of more than 2500 amino acids and complex 38 transmembrane helix topology, how Piezo1 is post-translationally modified to regulate its mechanotransduction function in vivo remains unexplored.
On September 12, 2024, Xiao Bailong of Tsinghua University and Ouyang Kunfu of Peking University jointly communicated inNeuron(IF=14.7)Published online entitled“Phosphorylation of Piezo1 at a single residue, serine-1612, regulates its mechanosensitivity and in vivo mechanotransduction function”The research paper,The study showedPhosphorylation of Piezo1 at a single residue, serine -1612, modulates its mechanosensitivity and mechanotransduction function in vivo.
Structure-function studies of mouse Piezo1 (mPiezo1) and mPiezo2 revealed their 38-transmembrane (TM) topological folding characteristics of 2,547 and 2,822 amino acids, respectively, which trimerize to form a three-lobed, propeller-like channel and undergo a force-induced conformational transition from a highly bent state to a flattened state. The unique structural design and excellent deformability of Piezo1/2 may explain their superb mechanical sensitivity as multifunctional mechanotransduction channels in a variety of cell types and physiological processes.Despite significant progress in understanding the physiological importance and structure-function relationships of piezoelectric channels, how they can be post-translationally modified to fine-tune their channel properties to mediate their multifunctional mechanotransduction functions remains largely unexplored.
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Tsinghua University Xiao Bailong/Peking University Ouyang Kunfu Collaboration Reveals Key Phosphorylation Sites That Regulate Piezo1 Mechanical Sensitivity and Mechanotransduction Function in Vivo
Piezo1 is a mechanically activated cation channel that can convert mechanical forces into various physiological processes. Due to its large protein size of more than 2500 amino acids and complex 38 transmembrane helix topology, how Piezo1 is post-translationally modified to regulate its mechanotransduction function in vivo remains unexplored.
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