登録情報 データベース : EMDB / ID : EMD-6475 構造の表示 ダウンロードとリンクタイトル Cryo-EM structure of the rabbit voltage-gated calcium channel Cav1.1 at 4.2 angstrom resolution マップデータReconstruction of a membrane protein 詳細 試料試料 : a membrane protein cryo-sampleタンパク質・ペプチド : Voltage-dependent L-type calcium channel subunit alpha-1Sタンパク質・ペプチド : Voltage-dependent L-type calcium channel subunit beta-2タンパク質・ペプチド : Voltage-dependent calcium channel gamma-1 subunitタンパク質・ペプチド : Voltage-dependent calcium channel subunit alpha-2/delta-1 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
voltage-gated calcium channel activity involved in regulation of presynaptic cytosolic calcium levels / Phase 2 - plateau phase / Phase 0 - rapid depolarisation / Presynaptic depolarization and calcium channel opening / voltage-gated calcium channel activity involved in AV node cell action potential / Regulation of insulin secretion / positive regulation of calcium ion transmembrane transport via high voltage-gated calcium channel / positive regulation of muscle contraction / positive regulation of high voltage-gated calcium channel activity / membrane depolarization during atrial cardiac muscle cell action potential ... voltage-gated calcium channel activity involved in regulation of presynaptic cytosolic calcium levels / Phase 2 - plateau phase / Phase 0 - rapid depolarisation / Presynaptic depolarization and calcium channel opening / voltage-gated calcium channel activity involved in AV node cell action potential / Regulation of insulin secretion / positive regulation of calcium ion transmembrane transport via high voltage-gated calcium channel / positive regulation of muscle contraction / positive regulation of high voltage-gated calcium channel activity / membrane depolarization during atrial cardiac muscle cell action potential / membrane depolarization during AV node cell action potential / regulation of presynaptic cytosolic calcium ion concentration / high voltage-gated calcium channel activity / L-type voltage-gated calcium channel complex / photoreceptor ribbon synapse / positive regulation of calcium ion transport / calcium ion import / regulation of calcium ion transmembrane transport via high voltage-gated calcium channel / voltage-gated calcium channel complex / neuromuscular junction development / cellular response to caffeine / regulation of heart rate by cardiac conduction / calcium channel regulator activity / calcium ion import across plasma membrane / voltage-gated calcium channel activity / release of sequestered calcium ion into cytosol / regulation of ryanodine-sensitive calcium-release channel activity / T-tubule / visual perception / muscle contraction / protein localization to plasma membrane / calcium ion transmembrane transport / phosphoprotein binding / sarcolemma / calcium ion transport / actin filament binding / presynapse / chemical synaptic transmission / transmembrane transporter binding / calmodulin binding / protein domain specific binding / protein kinase binding / identical protein binding / metal ion binding / plasma membrane 類似検索 - 分子機能 Voltage-dependent calcium channel, L-type, beta-2 subunit / CACNB2, SH3 domain / Voltage-dependent calcium channel, gamma-1 subunit / Voltage-dependent calcium channel, L-type, alpha-1S subunit / PMP-22/EMP/MP20/Claudin tight junction / Voltage-dependent L-type calcium channel subunit beta-1-4, N-terminal A domain / Voltage-dependent calcium channel, L-type, beta subunit / Voltage gated calcium channel subunit beta domain 4Aa N terminal / Voltage-gated calcium channel subunit alpha, C-terminal / Voltage-gated calcium channel subunit alpha, C-term ... Voltage-dependent calcium channel, L-type, beta-2 subunit / CACNB2, SH3 domain / Voltage-dependent calcium channel, gamma-1 subunit / Voltage-dependent calcium channel, L-type, alpha-1S subunit / PMP-22/EMP/MP20/Claudin tight junction / Voltage-dependent L-type calcium channel subunit beta-1-4, N-terminal A domain / Voltage-dependent calcium channel, L-type, beta subunit / Voltage gated calcium channel subunit beta domain 4Aa N terminal / Voltage-gated calcium channel subunit alpha, C-terminal / Voltage-gated calcium channel subunit alpha, C-term / Voltage-dependent calcium channel, L-type, alpha-1 subunit / VWA N-terminal / Voltage-dependent calcium channel, alpha-2/delta subunit, conserved region / VWA N-terminal / Neuronal voltage-dependent calcium channel alpha 2acd / Voltage-dependent calcium channel, alpha-1 subunit, IQ domain / Voltage gated calcium channel IQ domain / Voltage gated calcium channel IQ domain / Voltage-dependent calcium channel, alpha-1 subunit / Voltage-dependent L-type calcium channel, IQ-associated domain / Voltage-dependent L-type calcium channel, IQ-associated / Voltage-dependent calcium channel, gamma subunit / PMP-22/EMP/MP20/Claudin superfamily / Guanylate kinase/L-type calcium channel beta subunit / Guanylate kinase / Guanylate kinase homologues. / von Willebrand factor type A domain / von Willebrand factor (vWF) type A domain / VWFA domain profile. / Voltage-dependent channel domain superfamily / von Willebrand factor, type A / von Willebrand factor A-like domain superfamily / Src homology 3 domains / SH3-like domain superfamily / Src homology 3 (SH3) domain profile. / SH3 domain / Ion transport domain / Ion transport protein / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性 Voltage-dependent L-type calcium channel subunit alpha-1S / Voltage-dependent calcium channel subunit alpha-2/delta-1 / Voltage-dependent calcium channel gamma-1 subunit / Voltage-dependent L-type calcium channel subunit beta-2 / Voltage-dependent L-type calcium channel subunit beta-2 類似検索 - 構成要素生物種 Oryctolagus cuniculus (ウサギ)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 4.2 Å 詳細 データ登録者Wu JP / Yan Z / Li ZQ / Yan N 引用ジャーナル : Science / 年 : 2015タイトル : Structure of the voltage-gated calcium channel Cav1.1 complex.著者 : Jianping Wu / Zhen Yan / Zhangqiang Li / Chuangye Yan / Shan Lu / Mengqiu Dong / Nieng Yan / 要旨 : The voltage-gated calcium channel Ca(v)1.1 is engaged in the excitation-contraction coupling of skeletal muscles. The Ca(v)1.1 complex consists of the pore-forming subunit α1 and auxiliary subunits ... The voltage-gated calcium channel Ca(v)1.1 is engaged in the excitation-contraction coupling of skeletal muscles. The Ca(v)1.1 complex consists of the pore-forming subunit α1 and auxiliary subunits α2δ, β, and γ. We report the structure of the rabbit Ca(v)1.1 complex determined by single-particle cryo-electron microscopy. The four homologous repeats of the α1 subunit are arranged clockwise in the extracellular view. The γ subunit, whose structure resembles claudins, interacts with the voltage-sensing domain of repeat IV (VSD(IV)), whereas the cytosolic β subunit is located adjacent to VSD(II) of α1. The α2 subunit interacts with the extracellular loops of repeats I to III through its VWA and Cache1 domains. The structure reveals the architecture of a prototypical eukaryotic Ca(v) channel and provides a framework for understanding the function and disease mechanisms of Ca(v) and Na(v) channels. 履歴 登録 2015年9月28日 - ヘッダ(付随情報) 公開 2015年12月9日 - マップ公開 2015年12月30日 - 更新 2016年1月13日 - 現状 2016年1月13日 処理サイト : PDBj / 状態 : 公開
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