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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 8rrs | ||||||||||||
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タイトル | Structure of mouse RyR2 solubilised in detergent in open state in complex with Ca2+, ATP, caffeine and Nb9657. | ||||||||||||
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![]() | TRANSPORT PROTEIN / Ion channel / Ca2+ / tetramer | ||||||||||||
機能・相同性 | ![]() establishment of protein localization to endoplasmic reticulum / 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 / Stimuli-sensing channels / regulation of ventricular cardiac muscle cell action potential ...establishment of protein localization to endoplasmic reticulum / 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 / Stimuli-sensing channels / regulation of ventricular cardiac muscle cell action potential / ventricular cardiac muscle cell action potential / Ion homeostasis / positive regulation of sequestering of calcium ion / embryonic heart tube morphogenesis / cardiac muscle hypertrophy / calcium ion transport 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 / calcium ion transmembrane import into cytosol / 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 / detection of calcium ion / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / smooth endoplasmic reticulum / positive regulation of heart rate / response to muscle stretch / cellular response to epinephrine stimulus / calcium channel complex / sarcoplasmic reticulum membrane / regulation of heart rate / sarcoplasmic reticulum / sarcomere / establishment of localization in cell / calcium-mediated signaling / calcium ion transmembrane transport / calcium channel activity / Z disc / intracellular calcium ion homeostasis / calcium ion transport / response to hypoxia / calmodulin binding / calcium ion binding / protein kinase binding / enzyme binding / protein-containing complex / identical protein binding / membrane 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: 3.4 Å | ||||||||||||
![]() | Li, C. / Efremov, R.G. | ||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Rapid small-scale nanobody-assisted purification of ryanodine receptors for cryo-EM. 著者: Chenyao Li / Katrien Willegems / Tomasz Uchański / Els Pardon / Jan Steyaert / Rouslan G Efremov / ![]() 要旨: Ryanodine receptors (RyRs) are large Ca release channels residing in the endoplasmic or sarcoplasmic reticulum membrane. Three isoforms of RyRs have been identified in mammals, the disfunction of ...Ryanodine receptors (RyRs) are large Ca release channels residing in the endoplasmic or sarcoplasmic reticulum membrane. Three isoforms of RyRs have been identified in mammals, the disfunction of which has been associated with a series of life-threatening diseases. The need for large amounts of native tissue or eukaryotic cell cultures limits advances in structural studies of RyRs. Here, we report a method that utilizes nanobodies to purify RyRs from only 5 mg of total protein. The purification process, from isolated membranes to cryo-EM grade protein, is achieved within 4 h on the bench, yielding protein usable for cryo-EM analysis. This is demonstrated by solving the structures of rabbit RyR1, solubilized in detergent, reconstituted into lipid nanodiscs or liposomes, and bovine RyR2 reconstituted in nanodisc, and mouse RyR2 in detergent. The reported method facilitates structural studies of RyRs directed toward drug development and is useful in cases where the amount of starting material is limited. | ||||||||||||
履歴 |
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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 | ![]() | 3.3 MB | 表示 | ![]() |
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PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.5 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.8 MB | 表示 | |
XML形式データ | ![]() | 400.8 KB | 表示 | |
CIF形式データ | ![]() | 632.2 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 | ![]() 19463MC ![]() 8rrtC ![]() 8rruC ![]() 8rrvC ![]() 8rrwC ![]() 8rrxC ![]() 8rs0C 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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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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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 / 抗体 , 2種, 8分子 ACEFBDGI
#1: タンパク質 | 分子量: 565536.000 Da / 分子数: 4 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() #2: 抗体 | 分子量: 15125.495 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
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-非ポリマー , 4種, 16分子 






#3: 化合物 | ChemComp-ATP / #4: 化合物 | ChemComp-CFF / #5: 化合物 | ChemComp-ZN / #6: 化合物 | ChemComp-CA / |
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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 |
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由来(天然) |
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由来(組換発現) | 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
顕微鏡 | モデル: JEOL CRYO ARM 300 |
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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): 2500 nm / 最小 デフォーカス(公称値): 1500 nm |
撮影 | 電子線照射量: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
EMソフトウェア |
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画像処理 | 詳細: The movies were selected after MotionCor correction and CTF refinement with the parameters: total drift less than 30 angstrom and resolution better than 5 angstrom | ||||||||||||||||||||||||||||||
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 791664 詳細: Particles were picked by template picking in Cryosparc | ||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 76852 / 対称性のタイプ: POINT |