+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 5gl0 | |||||||||
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タイトル | Structure of RyR1 in a closed state (C4 conformer) | |||||||||
要素 |
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キーワード | TRANSPORT PROTEIN/ISOMERASE / channel / membrane protein / TRANSPORT PROTEIN-ISOMERASE complex | |||||||||
機能・相同性 | 機能・相同性情報 cytoplasmic side of membrane / ATP-gated ion channel activity / terminal cisterna / ryanodine receptor complex / ryanodine-sensitive calcium-release channel activity / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / ossification involved in bone maturation / skin development / organelle membrane / cellular response to caffeine ...cytoplasmic side of membrane / ATP-gated ion channel activity / terminal cisterna / ryanodine receptor complex / ryanodine-sensitive calcium-release channel activity / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / ossification involved in bone maturation / skin development / organelle membrane / cellular response to caffeine / outflow tract morphogenesis / intracellularly gated calcium channel activity / regulation of ryanodine-sensitive calcium-release channel activity / toxic substance binding / voltage-gated calcium channel activity / smooth endoplasmic reticulum / skeletal muscle fiber development / striated muscle contraction / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / release of sequestered calcium ion into cytosol / muscle contraction / sarcoplasmic reticulum membrane / cellular response to calcium ion / sarcoplasmic reticulum / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / calcium ion transmembrane transport / calcium channel activity / sarcolemma / Z disc / intracellular calcium ion homeostasis / disordered domain specific binding / protein homotetramerization / transmembrane transporter binding / calmodulin binding / intracellular membrane-bounded organelle / calcium ion binding / ATP binding / identical protein binding / membrane / cytosol 類似検索 - 分子機能 | |||||||||
生物種 | Oryctolagus cuniculus (ウサギ) | |||||||||
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: 4.2 Å | |||||||||
データ登録者 | Bai, X.C. / Yan, Z. / Wu, J.P. / Yan, N. | |||||||||
資金援助 | 中国, 2件
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引用 | ジャーナル: Cell Res / 年: 2016 タイトル: The Central domain of RyR1 is the transducer for long-range allosteric gating of channel opening. 著者: Xiao-Chen Bai / Zhen Yan / Jianping Wu / Zhangqiang Li / Nieng Yan / 要旨: The ryanodine receptors (RyRs) are intracellular calcium channels responsible for rapid release of Ca(2+) from the sarcoplasmic/endoplasmic reticulum (SR/ER) to the cytoplasm, which is essential for ...The ryanodine receptors (RyRs) are intracellular calcium channels responsible for rapid release of Ca(2+) from the sarcoplasmic/endoplasmic reticulum (SR/ER) to the cytoplasm, which is essential for the excitation-contraction (E-C) coupling of cardiac and skeletal muscles. The near-atomic resolution structure of closed RyR1 revealed the molecular details of this colossal channel, while the long-range allosteric gating mechanism awaits elucidation. Here, we report the cryo-EM structures of rabbit RyR1 in three closed conformations at about 4 Å resolution and an open state at 5.7 Å. Comparison of the closed RyR1 structures shows a breathing motion of the cytoplasmic platform, while the channel domain and its contiguous Central domain remain nearly unchanged. Comparison of the open and closed structures shows a dilation of the S6 tetrahelical bundle at the cytoplasmic gate that leads to channel opening. During the pore opening, the cytoplasmic "O-ring" motif of the channel domain and the U-motif of the Central domain exhibit coupled motion, while the Central domain undergoes domain-wise displacement. These structural analyses provide important insight into the E-C coupling in skeletal muscles and identify the Central domain as the transducer that couples the conformational changes of the cytoplasmic platform to the gating of the central pore. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 5gl0.cif.gz | 2.8 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb5gl0.ent.gz | 表示 | PDB形式 | |
PDBx/mmJSON形式 | 5gl0.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 5gl0_validation.pdf.gz | 1.3 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 5gl0_full_validation.pdf.gz | 1.7 MB | 表示 | |
XML形式データ | 5gl0_validation.xml.gz | 396.6 KB | 表示 | |
CIF形式データ | 5gl0_validation.cif.gz | 604.8 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/gl/5gl0 ftp://data.pdbj.org/pub/pdb/validation_reports/gl/5gl0 | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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-要素
#1: 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) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: P11716 #2: タンパク質 | 分子量: 11967.705 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Oryctolagus cuniculus (ウサギ) / 遺伝子: FKBP12 / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P62943, peptidylprolyl isomerase #3: 化合物 | ChemComp-ZN / |
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-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 |
-試料調製
構成要素 |
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分子量 | 値: 2.2 MDa / 実験値: NO | ||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) | 生物種: Escherichia coli (大腸菌) / プラスミド: unknown | ||||||||||||||||||||||||
緩衝液 | pH: 7.4 詳細: 20 mM MOPS-Na, pH 7.4, 250 mM NaCl, 2 mM DTT, 0.015% Tween20 (w/v) (Sigma-Aldrich) and protease inhibitor cocktail including 2 mM PMSF, 2.6 ug/ml aprotinin, 1.4 ug/ml pepstatin, and 10 ug/ml leupeptin (Amresco) | ||||||||||||||||||||||||
試料 | 濃度: 0.066 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: Quantifoil R2/2 | ||||||||||||||||||||||||
急速凍結 | 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
-電子顕微鏡撮影
実験機器 | モデル: Tecnai Polara / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI POLARA 300 |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD |
試料ホルダ | 凍結剤: NITROGEN |
撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: FEI FALCON II (4k x 4k) |
-解析
EMソフトウェア |
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画像処理 | 詳細: Actually we use a prototype FEI Falcon-III detector | ||||||||||||||||||||||||||||
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||
3次元再構成 | 解像度: 4.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 47000 / 対称性のタイプ: POINT |