登録情報 データベース : EMDB / ID : EMD-8356 構造の表示 ダウンロードとリンクタイトル Cryo-EM structure of Polycystic Kidney Disease protein 2 (PKD2) マップデータmap of hPKD2:53-792 in amphipols generated from RELION auto-refinement and postprocessing 詳細 試料複合体 : hPKD2:53-792 tetramerタンパク質・ペプチド : hPKD2:53-792 tetramer 詳細機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
detection of nodal flow / metanephric smooth muscle tissue development / metanephric cortex development / metanephric cortical collecting duct development / metanephric distal tubule development / polycystin complex / mesonephric tubule development / mesonephric duct development / metanephric part of ureteric bud development / renal tubule morphogenesis ... detection of nodal flow / metanephric smooth muscle tissue development / metanephric cortex development / metanephric cortical collecting duct development / metanephric distal tubule development / polycystin complex / mesonephric tubule development / mesonephric duct development / metanephric part of ureteric bud development / renal tubule morphogenesis / determination of liver left/right asymmetry / metanephric ascending thin limb development / metanephric mesenchyme development / metanephric S-shaped body morphogenesis / basal cortex / renal artery morphogenesis / HLH domain binding / VxPx cargo-targeting to cilium / cilium organization / migrasome / muscle alpha-actinin binding / regulation of calcium ion import / calcium-induced calcium release activity / detection of mechanical stimulus / voltage-gated monoatomic ion channel activity / placenta blood vessel development / cellular response to hydrostatic pressure / cation channel complex / cellular response to fluid shear stress / outward rectifier potassium channel activity / non-motile cilium / motile cilium / actinin binding / cellular response to osmotic stress / determination of left/right symmetry / : / neural tube development / voltage-gated monoatomic cation channel activity / voltage-gated sodium channel activity / branching involved in ureteric bud morphogenesis / aorta development / ciliary membrane / negative regulation of G1/S transition of mitotic cell cycle / positive regulation of phospholipase C-activating G protein-coupled receptor signaling pathway / protein heterotetramerization / spinal cord development / cytoplasmic side of endoplasmic reticulum membrane / heart looping / centrosome duplication / voltage-gated potassium channel activity / embryonic placenta development / potassium channel activity / cell surface receptor signaling pathway via JAK-STAT / voltage-gated calcium channel activity / transcription regulator inhibitor activity / monoatomic cation channel activity / cytoskeletal protein binding / release of sequestered calcium ion into cytosol / potassium ion transmembrane transport / cellular response to calcium ion / establishment of localization in cell / cytoplasmic vesicle membrane / cellular response to cAMP / basal plasma membrane / sodium ion transmembrane transport / lumenal side of endoplasmic reticulum membrane / cellular response to reactive oxygen species / protein tetramerization / liver development / phosphoprotein binding / calcium ion transmembrane transport / Wnt signaling pathway / intracellular calcium ion homeostasis / positive regulation of nitric oxide biosynthetic process / cell-cell junction / calcium ion transport / mitotic spindle / regulation of cell population proliferation / lamellipodium / heart development / ATPase binding / protein homotetramerization / basolateral plasma membrane / transmembrane transporter binding / cell surface receptor signaling pathway / regulation of cell cycle / cilium / ciliary basal body / negative regulation of cell population proliferation / signaling receptor binding / calcium ion binding / positive regulation of gene expression / endoplasmic reticulum membrane / endoplasmic reticulum / Golgi apparatus / protein homodimerization activity / positive regulation of transcription by RNA polymerase II / extracellular exosome / membrane / identical protein binding 類似検索 - 分子機能 Ferredoxin I 4Fe-4S cluster domain / : / Polycystic kidney disease type 2 protein / Polycystin domain / Polycystin domain / Polycystin cation channel, PKD1/PKD2 / Polycystin cation channel / Voltage-dependent channel domain superfamily / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair 類似検索 - ドメイン・相同性生物種 Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 4.0 Å 詳細 データ登録者Shen PS / Yang X / DeCaen PG / Liu X / Bulkley D / Clapham DE / Cao E 引用ジャーナル : Cell / 年 : 2016タイトル : The Structure of the Polycystic Kidney Disease Channel PKD2 in Lipid Nanodiscs.著者 : Peter S Shen / Xiaoyong Yang / Paul G DeCaen / Xiaowen Liu / David Bulkley / David E Clapham / Erhu Cao / 要旨 : The Polycystic Kidney Disease 2 (Pkd2) gene is mutated in autosomal dominant polycystic kidney disease (ADPKD), one of the most common human monogenic disorders. Here, we present the cryo-EM ... The Polycystic Kidney Disease 2 (Pkd2) gene is mutated in autosomal dominant polycystic kidney disease (ADPKD), one of the most common human monogenic disorders. Here, we present the cryo-EM structure of PKD2 in lipid bilayers at 3.0 Å resolution, which establishes PKD2 as a homotetrameric ion channel and provides insight into potential mechanisms for its activation. The PKD2 voltage-sensor domain retains two of four gating charges commonly found in those of voltage-gated ion channels. The PKD2 ion permeation pathway is constricted at the selectivity filter and near the cytoplasmic end of S6, suggesting that two gates regulate ion conduction. The extracellular domain of PKD2, a hotspot for ADPKD pathogenic mutations, contributes to channel assembly and strategically interacts with the transmembrane core, likely serving as a physical substrate for extracellular stimuli to allosterically gate the channel. Finally, our structure establishes the molecular basis for the majority of pathogenic mutations in Pkd2-related ADPKD. 履歴 登録 2016年8月29日 - ヘッダ(付随情報) 公開 2016年9月21日 - マップ公開 2016年11月2日 - 更新 2016年11月30日 - 現状 2016年11月30日 処理サイト : RCSB / 状態 : 公開
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