+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6wot | ||||||||||||||||||||||||
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タイトル | Cryo-EM structure of recombinant rabbit Ryanodine Receptor type 1 mutant R164C in complex with FKBP12.6 | ||||||||||||||||||||||||
要素 |
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キーワード | TRANSPORT PROTEIN/ISOMERASE / Ryanodine receptor / Calcium channel / Mutation / NTDA mutation / RyR1 / malignant hyperthermia / central core disease / TRANSPORT PROTEIN-ISOMERASE complex | ||||||||||||||||||||||||
機能・相同性 | 機能・相同性情報 ATP-gated ion channel activity / positive regulation of sequestering of calcium ion / cyclic nucleotide binding / negative regulation of insulin secretion involved in cellular response to glucose stimulus / terminal cisterna / ryanodine receptor complex / negative regulation of release of sequestered calcium ion into cytosol / ryanodine-sensitive calcium-release channel activity / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus ...ATP-gated ion channel activity / positive regulation of sequestering of calcium ion / cyclic nucleotide binding / negative regulation of insulin secretion involved in cellular response to glucose stimulus / terminal cisterna / ryanodine receptor complex / negative regulation of release of sequestered calcium ion into cytosol / ryanodine-sensitive calcium-release channel activity / neuronal action potential propagation / insulin secretion involved in cellular response to glucose stimulus / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / ossification involved in bone maturation / cell communication by electrical coupling involved in cardiac conduction / response to redox state / protein maturation by protein folding / 'de novo' protein folding / skin development / negative regulation of heart rate / negative regulation of phosphoprotein phosphatase activity / FK506 binding / positive regulation of axon regeneration / cellular response to caffeine / outflow tract morphogenesis / intracellularly gated calcium channel activity / organelle membrane / : / smooth muscle contraction / toxic substance binding / smooth endoplasmic reticulum / negative regulation of ryanodine-sensitive calcium-release channel activity / response to vitamin E / voltage-gated calcium channel activity / calcium channel inhibitor activity / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / skeletal muscle fiber development / protein peptidyl-prolyl isomerization / striated muscle contraction / T cell proliferation / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / release of sequestered calcium ion into cytosol / Ion homeostasis / regulation of ryanodine-sensitive calcium-release channel activity / sarcoplasmic reticulum membrane / calcium channel complex / muscle contraction / regulation of cytosolic calcium ion concentration / cellular response to calcium ion / sarcoplasmic reticulum / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / calcium ion transmembrane transport / calcium channel activity / response to hydrogen peroxide / Stimuli-sensing channels / sarcolemma / Z disc / intracellular calcium ion homeostasis / disordered domain specific binding / positive regulation of cytosolic calcium ion concentration / protein refolding / protein homotetramerization / transmembrane transporter binding / calmodulin binding / signaling receptor binding / calcium ion binding / ATP binding / identical protein binding / membrane / cytoplasm / cytosol 類似検索 - 分子機能 | ||||||||||||||||||||||||
生物種 | Oryctolagus cuniculus (ウサギ) Homo sapiens (ヒト) | ||||||||||||||||||||||||
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: 3.54 Å | ||||||||||||||||||||||||
データ登録者 | Iyer, K.A. / Hu, Y. / Kurebayashi, N. / Murayama, T. / Samso, M. | ||||||||||||||||||||||||
資金援助 | 米国, 7件
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引用 | ジャーナル: Sci Adv / 年: 2020 タイトル: Structural mechanism of two gain-of-function cardiac and skeletal RyR mutations at an equivalent site by cryo-EM. 著者: Kavita A Iyer / Yifan Hu / Ashok R Nayak / Nagomi Kurebayashi / Takashi Murayama / Montserrat Samsó / 要旨: Mutations in ryanodine receptors (RyRs), intracellular Ca channels, are associated with deadly disorders. Despite abundant functional studies, the molecular mechanism of RyR malfunction remains ...Mutations in ryanodine receptors (RyRs), intracellular Ca channels, are associated with deadly disorders. Despite abundant functional studies, the molecular mechanism of RyR malfunction remains elusive. We studied two single-point mutations at an equivalent site in the skeletal (RyR1 R164C) and cardiac (RyR2 R176Q) isoforms using ryanodine binding, Ca imaging, and cryo-electron microscopy (cryo-EM) of the full-length protein. Loss of the positive charge had greater effect on the skeletal isoform, mediated via distortion of a salt bridge network, a molecular latch inducing rotation of a cytoplasmic domain, and partial progression to open-state traits of the large cytoplasmic assembly accompanied by alteration of the Ca binding site, which concur with the major "hyperactive" feature of the mutated channel. Our cryo-EM studies demonstrated the allosteric effect of a mutation situated ~85 Å away from the pore and identified an isoform-specific structural effect. | ||||||||||||||||||||||||
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 | 6wot.cif.gz | 5.1 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6wot.ent.gz | 表示 | PDB形式 | |
PDBx/mmJSON形式 | 6wot.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 | 6wot_validation.pdf.gz | 1.3 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 6wot_full_validation.pdf.gz | 1.4 MB | 表示 | |
XML形式データ | 6wot_validation.xml.gz | 403.4 KB | 表示 | |
CIF形式データ | 6wot_validation.cif.gz | 620.4 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/wo/6wot ftp://data.pdbj.org/pub/pdb/validation_reports/wo/6wot | 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: 565737.500 Da / 分子数: 4 / 変異: R164C / 由来タイプ: 組換発現 / 由来: (組換発現) Oryctolagus cuniculus (ウサギ) / 遺伝子: RYR1 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P11716 #2: タンパク質 | 分子量: 11667.305 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: FKBP1B, FKBP12.6, FKBP1L, FKBP9, OTK4 発現宿主: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (大腸菌) 参照: UniProt: P68106, peptidylprolyl isomerase #3: 化合物 | ChemComp-ZN / 研究の焦点であるリガンドがあるか | N | |
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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: 2.26 MDa / 実験値: NO | |||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) |
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緩衝液 | pH: 7.4 | |||||||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 5 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: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil, UltrAuFoil, R1.2/1.3 | |||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 95 % / 凍結前の試料温度: 277 K |
-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: FEI TITAN KRIOS |
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 / 倍率(公称値): 81000 X / 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 / Cs: 2.7 mm / C2レンズ絞り径: 100 µm |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 平均露光時間: 3.49 sec. / 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 1 / 実像数: 4923 |
電子光学装置 | エネルギーフィルタースリット幅: 20 eV |
-解析
ソフトウェア |
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EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 581283 | ||||||||||||||||||||||||||||||||
対称性 | 点対称性: C4 (4回回転対称) | ||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.54 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 385324 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL | ||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 5TB0 Accession code: 5TB0 / Source name: PDB / タイプ: experimental model | ||||||||||||||||||||||||||||||||
精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 223.74 Å2 | ||||||||||||||||||||||||||||||||
拘束条件 |
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