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基本情報
登録情報 | データベース: PDB / ID: 3jac | ||||||
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タイトル | Cryo-EM study of a channel | ||||||
![]() | Piezo-type mechanosensitive ion channel component 1 | ||||||
![]() | METAL TRANSPORT / Cryo-EM / single particle | ||||||
機能・相同性 | ![]() mechanosensitive monoatomic cation channel activity / cuticular plate / positive regulation of cell-cell adhesion mediated by integrin / detection of mechanical stimulus / positive regulation of integrin activation / mechanosensitive monoatomic ion channel activity / stereocilium / positive regulation of myotube differentiation / lamellipodium membrane / monoatomic cation transport ...mechanosensitive monoatomic cation channel activity / cuticular plate / positive regulation of cell-cell adhesion mediated by integrin / detection of mechanical stimulus / positive regulation of integrin activation / mechanosensitive monoatomic ion channel activity / stereocilium / positive regulation of myotube differentiation / lamellipodium membrane / monoatomic cation transport / monoatomic cation channel activity / endoplasmic reticulum-Golgi intermediate compartment membrane / regulation of membrane potential / endoplasmic reticulum membrane / endoplasmic reticulum / identical protein binding / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / ネガティブ染色法 / クライオ電子顕微鏡法 / 解像度: 4.8 Å | ||||||
![]() | Ge, J. / Li, W. / Zhao, Q. / Li, N. / Xiao, B. / Gao, N. / Yang, M. | ||||||
![]() | ![]() タイトル: Architecture of the mammalian mechanosensitive Piezo1 channel. 著者: Jingpeng Ge / Wanqiu Li / Qiancheng Zhao / Ningning Li / Maofei Chen / Peng Zhi / Ruochong Li / Ning Gao / Bailong Xiao / Maojun Yang / ![]() 要旨: Piezo proteins are evolutionarily conserved and functionally diverse mechanosensitive cation channels. However, the overall structural architecture and gating mechanisms of Piezo channels have ...Piezo proteins are evolutionarily conserved and functionally diverse mechanosensitive cation channels. However, the overall structural architecture and gating mechanisms of Piezo channels have remained unknown. Here we determine the cryo-electron microscopy structure of the full-length (2,547 amino acids) mouse Piezo1 (Piezo1) at a resolution of 4.8 Å. Piezo1 forms a trimeric propeller-like structure (about 900 kilodalton), with the extracellular domains resembling three distal blades and a central cap. The transmembrane region has 14 apparently resolved segments per subunit. These segments form three peripheral wings and a central pore module that encloses a potential ion-conducting pore. The rather flexible extracellular blade domains are connected to the central intracellular domain by three long beam-like structures. This trimeric architecture suggests that Piezo1 may use its peripheral regions as force sensors to gate the central ion-conducting pore. | ||||||
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#1: タンパク質 | 分子量: 234834.109 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() Has protein modification | Y | 配列の詳細 | THE COMPLETE SEQUENCE OF THE PROTEIN IS BASED ON THE ENTIRE SEQUNCE OF UNIPROTKB E2JF22 (PIEZ1_ ...THE COMPLETE SEQUENCE OF THE PROTEIN IS BASED ON THE ENTIRE SEQUNCE OF UNIPROTKB E2JF22 (PIEZ1_MOUSE), WITH C-TERMINAL EXPRESSION | |
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