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基本情報
登録情報 | データベース: PDB / ID: 7ua5 | ||||||
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タイトル | Structure of dephosphorylated human RyR2 in the closed state | ||||||
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![]() | MEMBRANE PROTEIN / calcium channel | ||||||
機能・相同性 | ![]() junctional sarcoplasmic reticulum membrane / sarcoplasmic reticulum calcium ion transport / establishment of protein localization to endoplasmic reticulum / type B pancreatic cell apoptotic process / Purkinje myocyte to ventricular cardiac muscle cell signaling / calcium-induced calcium release activity / regulation of atrial cardiac muscle cell action potential / left ventricular cardiac muscle tissue morphogenesis / suramin binding / regulation of AV node cell action potential ...junctional sarcoplasmic reticulum membrane / sarcoplasmic reticulum calcium ion transport / establishment of protein localization to endoplasmic reticulum / type B pancreatic cell apoptotic process / Purkinje myocyte to ventricular cardiac muscle cell signaling / calcium-induced calcium release activity / regulation of atrial cardiac muscle cell action potential / left ventricular cardiac muscle tissue morphogenesis / suramin binding / regulation of AV node cell action potential / regulation of SA node cell action potential / cell communication by electrical coupling involved in cardiac conduction / regulation of ventricular cardiac muscle cell action potential / ventricular cardiac muscle cell action potential / positive regulation of sequestering of calcium ion / negative regulation of calcium-mediated signaling / embryonic heart tube morphogenesis / cardiac muscle hypertrophy / negative regulation of insulin secretion involved in cellular response to glucose stimulus / neuronal action potential propagation / negative regulation of release of sequestered calcium ion into cytosol / insulin secretion involved in cellular response to glucose stimulus / calcium ion transport into cytosol / ryanodine-sensitive calcium-release channel activity / response to caffeine / regulation of cardiac muscle contraction by calcium ion signaling / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / response to redox state / 'de novo' protein folding / negative regulation of heart rate / FK506 binding / protein kinase A regulatory subunit binding / response to muscle activity / protein kinase A catalytic subunit binding / positive regulation of the force of heart contraction / cellular response to caffeine / intracellularly gated calcium channel activity / smooth muscle contraction / detection of calcium ion / regulation of cardiac muscle contraction / regulation of cytosolic calcium ion concentration / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / T cell proliferation / smooth endoplasmic reticulum / calcium channel inhibitor activity / positive regulation of heart rate / cardiac muscle contraction / Ion homeostasis / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / response to muscle stretch / release of sequestered calcium ion into cytosol / cellular response to epinephrine stimulus / calcium channel complex / sarcoplasmic reticulum membrane / calcium channel regulator activity / regulation of heart rate / protein maturation / sarcoplasmic reticulum / peptidyl-prolyl cis-trans isomerase activity / peptidylprolyl isomerase / establishment of localization in cell / calcium-mediated signaling / sarcolemma / calcium channel activity / Stimuli-sensing channels / Z disc / intracellular calcium ion homeostasis / calcium ion transport / positive regulation of cytosolic calcium ion concentration / protein refolding / transmembrane transporter binding / response to hypoxia / calmodulin binding / signaling receptor binding / calcium ion binding / enzyme binding / protein-containing complex / identical protein binding / membrane / plasma membrane / cytoplasm 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 / クライオ電子顕微鏡法 / 解像度: 2.83 Å | ||||||
![]() | Miotto, M.C. / Marks, A.R. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural analyses of human ryanodine receptor type 2 channels reveal the mechanisms for sudden cardiac death and treatment. 著者: Marco C Miotto / Gunnar Weninger / Haikel Dridi / Qi Yuan / Yang Liu / Anetta Wronska / Zephan Melville / Leah Sittenfeld / Steven Reiken / Andrew R Marks / ![]() 要旨: Ryanodine receptor type 2 (RyR2) mutations have been linked to an inherited form of exercise-induced sudden cardiac death called catecholaminergic polymorphic ventricular tachycardia (CPVT). CPVT ...Ryanodine receptor type 2 (RyR2) mutations have been linked to an inherited form of exercise-induced sudden cardiac death called catecholaminergic polymorphic ventricular tachycardia (CPVT). CPVT results from stress-induced sarcoplasmic reticular Ca leak via the mutant RyR2 channels during diastole. We present atomic models of human wild-type (WT) RyR2 and the CPVT mutant RyR2-R2474S determined by cryo-electron microscopy with overall resolutions in the range of 2.6 to 3.6 Å, and reaching local resolutions of 2.25 Å, unprecedented for RyR2 channels. Under nonactivating conditions, the RyR2-R2474S channel is in a "primed" state between the closed and open states of WT RyR2, rendering it more sensitive to activation that results in stress-induced Ca leak. The Rycal drug ARM210 binds to RyR2-R2474S, reverting the primed state toward the closed state. Together, these studies provide a mechanism for CPVT and for the therapeutic actions of ARM210. | ||||||
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PDBx/mmCIF形式 | ![]() | 3 MB | 表示 | ![]() |
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文書・要旨 | ![]() | 1.5 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.7 MB | 表示 | |
XML形式データ | ![]() | 411 KB | 表示 | |
CIF形式データ | ![]() | 630.7 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 26415MC ![]() 7u9qC ![]() 7u9rC ![]() 7u9tC ![]() 7u9xC ![]() 7u9zC ![]() 7ua1C ![]() 7ua3C ![]() 7ua4C ![]() 7ua9C M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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非結晶学的対称性 (NCS) | NCSドメイン:
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