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基本情報
登録情報 | データベース: PDB / ID: 9.0E+17 | ||||||
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タイトル | Structure of RyR1 in the primed state in the presence of caffeine (reprocessed/reanalyzed from EMPIAR-10997, 7TZC, EMD-26205) | ||||||
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![]() | TRANSPORT PROTEIN / calcium channel / sarcoplasmic reticulum | ||||||
機能・相同性 | ![]() cytoplasmic side of membrane / ATP-gated ion channel activity / terminal cisterna / ryanodine receptor complex / ryanodine-sensitive calcium-release channel activity / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Calmodulin induced events ...cytoplasmic side of membrane / ATP-gated ion channel activity / terminal cisterna / ryanodine receptor complex / ryanodine-sensitive calcium-release channel activity / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Calmodulin induced events / positive regulation of ryanodine-sensitive calcium-release channel activity / Reduction of cytosolic Ca++ levels / Activation of Ca-permeable Kainate Receptor / ossification involved in bone maturation / 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 / CaMK IV-mediated phosphorylation of CREB / PKA activation / negative regulation of high voltage-gated calcium channel activity / Glycogen breakdown (glycogenolysis) / CLEC7A (Dectin-1) induces NFAT activation / Activation of RAC1 downstream of NMDARs / skin development / organelle localization by membrane tethering / negative regulation of ryanodine-sensitive calcium-release channel activity / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / negative regulation of calcium ion export across plasma membrane / regulation of cardiac muscle cell action potential / presynaptic endocytosis / organelle membrane / Synthesis of IP3 and IP4 in the cytosol / regulation of cell communication by electrical coupling involved in cardiac conduction / Phase 0 - rapid depolarisation / calcineurin-mediated signaling / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / cellular response to caffeine / RHO GTPases activate PAKs / intracellularly gated calcium channel activity / Ion transport by P-type ATPases / outflow tract morphogenesis / Uptake and function of anthrax toxins / regulation of ryanodine-sensitive calcium-release channel activity / Long-term potentiation / protein phosphatase activator activity / Calcineurin activates NFAT / Regulation of MECP2 expression and activity / DARPP-32 events / catalytic complex / Smooth Muscle Contraction / detection of calcium ion / regulation of cardiac muscle contraction / RHO GTPases activate IQGAPs / toxic substance binding / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / smooth endoplasmic reticulum / striated muscle contraction / voltage-gated calcium channel activity / calcium channel inhibitor activity / cellular response to interferon-beta / Protein methylation / presynaptic cytosol / Activation of AMPK downstream of NMDARs / skeletal muscle fiber development / Ion homeostasis / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / eNOS activation / titin binding / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / sperm midpiece / voltage-gated potassium channel complex / regulation of calcium-mediated signaling / release of sequestered calcium ion into cytosol / calcium channel complex / substantia nigra development / FCERI mediated Ca+2 mobilization / sarcoplasmic reticulum membrane / Ras activation upon Ca2+ influx through NMDA receptor / muscle contraction / regulation of heart rate / FCGR3A-mediated IL10 synthesis / calyx of Held / cellular response to calcium ion / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / adenylate cyclase activator activity / sarcoplasmic reticulum / sarcomere / VEGFR2 mediated cell proliferation / regulation of cytokinesis / protein serine/threonine kinase activator activity / VEGFR2 mediated vascular permeability / spindle microtubule / peptidyl-prolyl cis-trans isomerase activity / Translocation of SLC2A4 (GLUT4) to the plasma membrane / peptidylprolyl isomerase / positive regulation of receptor signaling pathway via JAK-STAT / RAF activation / Transcriptional activation of mitochondrial biogenesis 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: 2.45 Å | ||||||
![]() | Miotto, M.C. / Marks, A.R. | ||||||
資金援助 | 1件
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![]() | ![]() タイトル: Targeting ryanodine receptors with allopurinol and xanthine derivatives for the treatment of cardiac and musculoskeletal weakness disorders. 著者: Marco C Miotto / Estefania Luna-Figueroa / Carl Tchagou / Laith Bahlouli / Steven Reiken / Haikel Dridi / Yang Liu / Gunnar Weninger / Andrew R Marks / ![]() 要旨: Ryanodine receptors (RyRs) are intracellular Ca channels essential for muscle contraction. Caffeine, a xanthine derivative, has been known for decades to increase muscle contraction and enhance ...Ryanodine receptors (RyRs) are intracellular Ca channels essential for muscle contraction. Caffeine, a xanthine derivative, has been known for decades to increase muscle contraction and enhance activation of RyRs by increasing the sensitivity to Ca. We previously showed that xanthine, the only physiologically relevant xanthine derivative, also binds to and activates RyR2. Most xanthine derivatives and analogs are safe and widely prescribed, with the most popular being the xanthine oxidoreductase inhibitor allopurinol (~15M yearly prescriptions in USA). We propose that xanthine derivatives and analogs that enhance RyRs activity could be used for lead optimization and eventually for the treatment of the diseases that exhibit decreased muscle contraction and reduced RyRs activity, such as RyR1-related diseases, sarcopenia, and heart failure. Here, we show by cryo-EM that xanthine derivatives, analogs, and other related compounds bind to the xanthine/caffeine binding site and activate RyR1, and identify 4-oxopyrimidine as the minimal motif necessary for such interaction. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 3.2 MB | 表示 | ![]() |
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PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-検証レポート
文書・要旨 | ![]() | 2.6 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 2.8 MB | 表示 | |
XML形式データ | ![]() | 436.3 KB | 表示 | |
CIF形式データ | ![]() | 673.8 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 | ![]() 9e18C ![]() 9e19C ![]() 9e1aC ![]() 9e1bC ![]() 9e1cC ![]() 9e1dC ![]() 9e1eC ![]() 9e1fC ![]() 9e1gC ![]() 9e1hC ![]() 9e1iC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
電子顕微鏡画像生データ | ![]() Data size: 1.5 TB Data #1: Type-1 ryanodine receptor [micrographs - multiframe]) |
実験データセット #1 | データ参照: ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
-タンパク質 , 3種, 12分子 KDECFHJOABGI
#1: タンパク質 | 分子量: 16990.691 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #2: タンパク質 | 分子量: 11967.705 Da / 分子数: 4 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() #3: タンパク質 | 分子量: 565908.625 Da / 分子数: 4 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
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-非ポリマー , 7種, 52分子 












#4: 化合物 | ChemComp-CA / #5: 化合物 | ChemComp-ATP / #6: 化合物 | ChemComp-ZN / #7: 化合物 | ChemComp-CFF / #8: 化合物 | ChemComp-KVR / #9: 化合物 | ChemComp-L9R / ( #10: 水 | ChemComp-HOH / | |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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Has protein modification | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: RyR1 in complex with calstabin-1 and calmodulin / タイプ: COMPLEX / Entity ID: #1-#3 / 由来: NATURAL |
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由来(天然) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.4 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: TFS KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 57.65 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 2.45 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 333010 / 対称性のタイプ: POINT |
原子モデル構築 | PDB-ID: 7TZC Accession code: 7TZC / Source name: PDB / タイプ: experimental model |