登録情報 データベース : EMDB / ID : EMD-0942 構造の表示 ダウンロードとリンクタイトル voltage-gated sodium channel Nav1.5 with quinidine マップデータvoltage-gated sodium channel with drug 詳細 試料複合体 : Voltage-gated sodium channel with drugタンパク質・ペプチド : Sodium channel protein type 5 subunit alphaリガンド : 2-acetamido-2-deoxy-beta-D-glucopyranoseリガンド : Quinidine 詳細 キーワード membrane protein / Voltage-gated sodium channel / TRANSPORT PROTEIN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
voltage-gated sodium channel activity involved in AV node cell action potential / voltage-gated sodium channel activity involved in bundle of His cell action potential / voltage-gated sodium channel activity involved in Purkinje myocyte action potential / voltage-gated sodium channel activity involved in SA node cell action potential / bundle of His cell action potential / AV node cell action potential / SA node cell action potential / AV node cell to bundle of His cell communication / membrane depolarization during SA node cell action potential / response to denervation involved in regulation of muscle adaptation ... voltage-gated sodium channel activity involved in AV node cell action potential / voltage-gated sodium channel activity involved in bundle of His cell action potential / voltage-gated sodium channel activity involved in Purkinje myocyte action potential / voltage-gated sodium channel activity involved in SA node cell action potential / bundle of His cell action potential / AV node cell action potential / SA node cell action potential / AV node cell to bundle of His cell communication / membrane depolarization during SA node cell action potential / response to denervation involved in regulation of muscle adaptation / membrane depolarization during atrial cardiac muscle cell action potential / cardiac ventricle development / regulation of atrial cardiac muscle cell membrane repolarization / regulation of ventricular cardiac muscle cell membrane depolarization / voltage-gated sodium channel activity involved in cardiac muscle cell action potential / brainstem development / membrane depolarization during AV node cell action potential / positive regulation of action potential / membrane depolarization during bundle of His cell action potential / atrial cardiac muscle cell action potential / membrane depolarization during Purkinje myocyte cell action potential / cardiac conduction system development / telencephalon development / regulation of sodium ion transmembrane transport / regulation of atrial cardiac muscle cell membrane depolarization / membrane depolarization during cardiac muscle cell action potential / membrane depolarization during action potential / positive regulation of sodium ion transport / ventricular cardiac muscle cell action potential / cardiac muscle cell action potential involved in contraction / regulation of ventricular cardiac muscle cell membrane repolarization / voltage-gated sodium channel complex / regulation of cardiac muscle cell contraction / Interaction between L1 and Ankyrins / ankyrin binding / voltage-gated sodium channel activity / nitric-oxide synthase binding / sodium ion transport / Phase 0 - rapid depolarisation / fibroblast growth factor binding / odontogenesis of dentin-containing tooth / regulation of heart rate by cardiac conduction / membrane depolarization / intercalated disc / lateral plasma membrane / cardiac muscle contraction / T-tubule / sodium ion transmembrane transport / cerebellum development / regulation of heart rate / cellular response to calcium ion / positive regulation of epithelial cell proliferation / sarcolemma / caveola / Z disc / scaffold protein binding / transmembrane transporter binding / calmodulin binding / protein domain specific binding / ubiquitin protein ligase binding / protein kinase binding / nucleolus / perinuclear region of cytoplasm / enzyme binding / cell surface / endoplasmic reticulum / nucleoplasm / membrane / plasma membrane 類似検索 - 分子機能 Voltage gated sodium channel, alpha-5 subunit / Voltage-gated Na+ ion channel, cytoplasmic domain / Cytoplasmic domain of voltage-gated Na+ ion channel / Sodium ion transport-associated / Voltage-gated sodium channel alpha subunit, inactivation gate / Sodium ion transport-associated / SCN5A-like, C-terminal IQ motif / Voltage gated sodium channel, alpha subunit / Voltage-gated cation channel calcium and sodium / Voltage-dependent channel domain superfamily ... Voltage gated sodium channel, alpha-5 subunit / Voltage-gated Na+ ion channel, cytoplasmic domain / Cytoplasmic domain of voltage-gated Na+ ion channel / Sodium ion transport-associated / Voltage-gated sodium channel alpha subunit, inactivation gate / Sodium ion transport-associated / SCN5A-like, C-terminal IQ motif / Voltage gated sodium channel, alpha subunit / Voltage-gated cation channel calcium and sodium / Voltage-dependent channel domain superfamily / Ion transport domain / Ion transport protein 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 : 3.3 Å 詳細 データ登録者Yan N / Li Z 資金援助 中国, 1件 詳細 詳細を隠すOrganization Grant number 国 Ministry of Science and Technology (MoST, China) 2016YFA0500402 中国
引用ジャーナル : Angew Chem Int Ed Engl / 年 : 2021タイトル : Structural Basis for Pore Blockade of the Human Cardiac Sodium Channel Na 1.5 by the Antiarrhythmic Drug Quinidine*.著者 : Zhangqiang Li / Xueqin Jin / Tong Wu / Gaoxingyu Huang / Kun Wu / Jianlin Lei / Xiaojing Pan / Nieng Yan / 要旨 : Na 1.5, the primary voltage-gated Na (Na ) channel in heart, is a major target for class I antiarrhythmic agents. Here we present the cryo-EM structure of full-length human Na 1.5 bound to quinidine, ... Na 1.5, the primary voltage-gated Na (Na ) channel in heart, is a major target for class I antiarrhythmic agents. Here we present the cryo-EM structure of full-length human Na 1.5 bound to quinidine, a class Ia antiarrhythmic drug, at 3.3 Å resolution. Quinidine is positioned right beneath the selectivity filter in the pore domain and coordinated by residues from repeats I, III, and IV. Pore blockade by quinidine is achieved through both direct obstruction of the ion permeation path and induced rotation of an invariant Tyr residue that tightens the intracellular gate. Structural comparison with a truncated rat Na 1.5 in the presence of flecainide, a class Ic agent, reveals distinct binding poses for the two antiarrhythmics within the pore domain. Our work reported here, along with previous studies, reveals the molecular basis for the mechanism of action of class I antiarrhythmic drugs. 履歴 登録 2020年1月13日 - ヘッダ(付随情報) 公開 2021年3月24日 - マップ公開 2021年3月24日 - 更新 2024年11月6日 - 現状 2024年11月6日 処理サイト : PDBj / 状態 : 公開
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