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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||
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| タイトル | Structure of PKA phosphorylated human RyR2-R420W in the open state in the presence of calcium and calmodulin | |||||||||
マップデータ | Composite map of the Structure of PKA phosphorylated human RyR2-R420W in the open state in the presence of calcium and calmodulin | |||||||||
試料 |
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キーワード | calcium channel / MEMBRANE PROTEIN | |||||||||
| 機能・相同性 | 機能・相同性情報establishment of protein localization to endoplasmic reticulum / junctional sarcoplasmic reticulum membrane / type B pancreatic cell apoptotic process / Purkinje myocyte to ventricular cardiac muscle cell signaling / 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 / sarcoplasmic reticulum calcium ion transport ...establishment of protein localization to endoplasmic reticulum / junctional sarcoplasmic reticulum membrane / type B pancreatic cell apoptotic process / Purkinje myocyte to ventricular cardiac muscle cell signaling / 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 / sarcoplasmic reticulum calcium ion transport / calcium-induced calcium release activity / cell communication by electrical coupling involved in cardiac conduction / regulation of ventricular cardiac muscle cell action potential / : / ventricular cardiac muscle cell action potential / embryonic heart tube morphogenesis / negative regulation of calcium-mediated signaling / cardiac muscle hypertrophy / negative regulation of insulin secretion involved in cellular response to glucose stimulus / calcium ion transport into cytosol / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus / negative regulation of release of sequestered calcium ion into cytosol / ryanodine-sensitive calcium-release channel activity / response to caffeine / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / response to redox state / CaM pathway / Cam-PDE 1 activation / regulation of cardiac muscle contraction by calcium ion signaling / Sodium/Calcium exchangers / Calmodulin induced events / cellular response to caffeine / negative regulation of heart rate / Reduction of cytosolic Ca++ levels / 'de novo' protein folding / Activation of Ca-permeable Kainate Receptor / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / Loss of phosphorylation of MECP2 at T308 / CREB1 phosphorylation through the activation of Adenylate Cyclase / negative regulation of high voltage-gated calcium channel activity / PKA activation / CaMK IV-mediated phosphorylation of CREB / Glycogen breakdown (glycogenolysis) / FK506 binding / CLEC7A (Dectin-1) induces NFAT activation / response to muscle activity / Activation of RAC1 downstream of NMDARs / negative regulation of ryanodine-sensitive calcium-release channel activity / organelle localization by membrane tethering / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / negative regulation of calcium ion export across plasma membrane / regulation of ryanodine-sensitive calcium-release channel activity / regulation of cardiac muscle cell action potential / protein kinase A regulatory subunit binding / protein kinase A catalytic subunit binding / presynaptic endocytosis / positive regulation of the force of heart contraction / Synthesis of IP3 and IP4 in the cytosol / intracellularly gated calcium channel activity / smooth endoplasmic reticulum / Phase 0 - rapid depolarisation / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / RHO GTPases activate PAKs / calcineurin-mediated signaling / regulation of cell communication by electrical coupling involved in cardiac conduction / Ion transport by P-type ATPases / smooth muscle contraction / Uptake and function of anthrax toxins / protein phosphatase activator activity / Long-term potentiation / Calcineurin activates NFAT / Regulation of MECP2 expression and activity / DARPP-32 events / T cell proliferation / Smooth Muscle Contraction / detection of calcium ion / regulation of cardiac muscle contraction / positive regulation of heart rate / regulation of cytosolic calcium ion concentration / catalytic complex / RHO GTPases activate IQGAPs / calcium channel inhibitor activity / presynaptic cytosol / striated muscle contraction / cellular response to interferon-beta / Activation of AMPK downstream of NMDARs / Ion homeostasis / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / cardiac muscle contraction / response to muscle stretch / eNOS activation / Protein methylation / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / titin binding / release of sequestered calcium ion into cytosol / regulation of calcium-mediated signaling / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion 類似検索 - 分子機能 | |||||||||
| 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: 3.56 Å | |||||||||
データ登録者 | Miotto MC / Marks AR | |||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Commun / 年: 2024タイトル: Structural basis for ryanodine receptor type 2 leak in heart failure and arrhythmogenic disorders. 著者: Marco C Miotto / Steven Reiken / Anetta Wronska / Qi Yuan / Haikel Dridi / Yang Liu / Gunnar Weninger / Carl Tchagou / Andrew R Marks / ![]() 要旨: Heart failure, the leading cause of mortality and morbidity in the developed world, is characterized by cardiac ryanodine receptor 2 channels that are hyperphosphorylated, oxidized, and depleted of ...Heart failure, the leading cause of mortality and morbidity in the developed world, is characterized by cardiac ryanodine receptor 2 channels that are hyperphosphorylated, oxidized, and depleted of the stabilizing subunit calstabin-2. This results in a diastolic sarcoplasmic reticulum Ca leak that impairs cardiac contractility and triggers arrhythmias. Genetic mutations in ryanodine receptor 2 can also cause Ca leak, leading to arrhythmias and sudden cardiac death. Here, we solved the cryogenic electron microscopy structures of ryanodine receptor 2 variants linked either to heart failure or inherited sudden cardiac death. All are in the primed state, part way between closed and open. Binding of Rycal drugs to ryanodine receptor 2 channels reverts the primed state back towards the closed state, decreasing Ca leak, improving cardiac function, and preventing arrhythmias. We propose a structural-physiological mechanism whereby the ryanodine receptor 2 channel primed state underlies the arrhythmias in heart failure and arrhythmogenic disorders. | |||||||||
| 履歴 |
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_42769.map.gz | 245.5 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-42769-v30.xml emd-42769.xml | 24.8 KB 24.8 KB | 表示 表示 | EMDBヘッダ |
| 画像 | emd_42769.png | 206.9 KB | ||
| Filedesc metadata | emd-42769.cif.gz | 9.7 KB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-42769 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-42769 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 8uxmMC ![]() 8uq2C ![]() 8uq3C ![]() 8uq4C ![]() 8uq5C ![]() 8uxcC ![]() 8uxeC ![]() 8uxfC ![]() 8uxgC ![]() 8uxhC ![]() 8uxiC ![]() 8uxlC C: 同じ文献を引用 ( M: このマップから作成された原子モデル |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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| 「今月の分子」の関連する項目 |
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マップ
| ファイル | ダウンロード / ファイル: emd_42769.map.gz / 形式: CCP4 / 大きさ: 512 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 注釈 | Composite map of the Structure of PKA phosphorylated human RyR2-R420W in the open state in the presence of calcium and calmodulin | ||||||||||||||||||||||||||||||||||||
| 投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
| ボクセルのサイズ | X=Y=Z: 0.8425 Å | ||||||||||||||||||||||||||||||||||||
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
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-添付データ
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試料の構成要素
+全体 : Complex of RyR2-R420W, Calstabin-2, and Calmodulin
+超分子 #1: Complex of RyR2-R420W, Calstabin-2, and Calmodulin
+超分子 #2: Ryanodine Receptor 2
+超分子 #3: Peptidyl- cis-trans isomerase FKBP1B
+超分子 #4: Calmodulin
+分子 #1: Calmodulin-1
+分子 #2: Ryanodine receptor 2
+分子 #3: Peptidyl-prolyl cis-trans isomerase FKBP1B
+分子 #4: CALCIUM ION
+分子 #5: ZINC ION
+分子 #6: ADENOSINE-5'-TRIPHOSPHATE
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
| 試料の集合状態 | particle |
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試料調製
| 濃度 | 2.5 mg/mL | |||||||||||||||||||||||||||
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| 緩衝液 | pH: 7.4 構成要素:
詳細: 0.020 mM Calmodulin was added to the final sample | |||||||||||||||||||||||||||
| 凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
| 顕微鏡 | FEI TITAN KRIOS |
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| 温度 | 最低: 80.0 K / 最高: 100.0 K |
| 特殊光学系 | エネルギーフィルター - 名称: GIF Bioquantum / エネルギーフィルター - スリット幅: 20 eV |
| 撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) デジタル化 - サイズ - 横: 5760 pixel / デジタル化 - サイズ - 縦: 4092 pixel / 平均電子線量: 58.0 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | C2レンズ絞り径: 100.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 1.2 µm / 最小 デフォーカス(公称値): 0.5 µm |
| 試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
| 初期モデル | モデルのタイプ: INSILICO MODEL / In silico モデル: CryoSPARC ab initio |
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| 最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.56 Å / 解像度の算出法: FSC 0.143 CUT-OFF / ソフトウェア - 名称: cryoSPARC / 使用した粒子像数: 49606 |
| 初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD / ソフトウェア - 名称: cryoSPARC |
| 最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
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コントローラー
万見について




キーワード
Homo sapiens (ヒト)
データ登録者
米国, 1件
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FIELD EMISSION GUN

