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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: 3j7r | |||||||||||||||
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| タイトル | Structure of the translating mammalian ribosome-Sec61 complex | |||||||||||||||
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キーワード | RIBOSOME / mammalian / Sec61 / translocation / translation | |||||||||||||||
| 機能・相同性 | 機能・相同性情報regulation of cell cycle => GO:0051726 / regulation of cell cycle => GO:0051726 / TNFR1-mediated ceramide production / Translation initiation complex formation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / Degradation of CDH1 / Regulation of TNFR1 signaling / TNFR1-induced NF-kappa-B signaling pathway / : ...regulation of cell cycle => GO:0051726 / regulation of cell cycle => GO:0051726 / TNFR1-mediated ceramide production / Translation initiation complex formation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / Degradation of CDH1 / Regulation of TNFR1 signaling / TNFR1-induced NF-kappa-B signaling pathway / : / L13a-mediated translational silencing of Ceruloplasmin expression / SRP-dependent cotranslational protein targeting to membrane / Major pathway of rRNA processing in the nucleolus and cytosol / Formation of a pool of free 40S subunits / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / pronephric nephron development / Sec61 translocon complex / protein insertion into ER membrane / protein-transporting ATPase activity / (S)-malate dehydrogenase (NAD+, oxaloacetate-forming) / L-malate dehydrogenase (NAD+) activity / carboxylic acid metabolic process / SRP-dependent cotranslational protein targeting to membrane / embryonic brain development / translation at presynapse / post-translational protein targeting to membrane, translocation / cellular response to actinomycin D / protein-DNA complex disassembly / positive regulation of gastrulation / protein tyrosine kinase inhibitor activity / IRE1-RACK1-PP2A complex / positive regulation of Golgi to plasma membrane protein transport / alpha-beta T cell differentiation / negative regulation of RNA splicing / neural crest cell differentiation / cysteine-type endopeptidase activator activity involved in apoptotic process / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / regulation of establishment of cell polarity / negative regulation of phagocytosis / cytoplasmic side of rough endoplasmic reticulum membrane / organelle membrane / laminin receptor activity / positive regulation of mitochondrial depolarization / negative regulation of Wnt signaling pathway / BH3 domain binding / negative regulation of translational frameshifting / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / positive regulation of GTPase activity / regulation of cell division / membrane => GO:0016020 / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / protein serine/threonine kinase inhibitor activity / ubiquitin ligase inhibitor activity / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of signal transduction by p53 class mediator / protein localization to nucleus / negative regulation of ubiquitin-dependent protein catabolic process / protein targeting / phagocytic cup / tricarboxylic acid cycle / positive regulation of intrinsic apoptotic signaling pathway / translation regulator activity / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rough endoplasmic reticulum / laminin binding / gastrulation / signaling adaptor activity / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / rescue of stalled cytosolic ribosome / cytosolic ribosome / SH2 domain binding / class I DNA-(apurinic or apyrimidinic site) endonuclease activity / cyclin binding / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / DNA-(apurinic or apyrimidinic site) lyase / protein kinase C binding / ribosomal large subunit biogenesis / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of apoptotic signaling pathway / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / negative regulation of smoothened signaling pathway / maturation of SSU-rRNA / mRNA 3'-UTR binding / neural tube closure / cellular response to glucose stimulus / small-subunit processome / positive regulation of protein-containing complex assembly / negative regulation of cell growth / positive regulation of protein phosphorylation / receptor tyrosine kinase binding / maintenance of translational fidelity / cellular response to growth factor stimulus / modification-dependent protein catabolic process / mRNA 5'-UTR binding / spindle / calcium channel activity / transcription coactivator binding / protein tag activity 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: 3.9 Å | |||||||||||||||
データ登録者 | Voorhees, R.M. / Fernandez, I.S. / Scheres, S.H.W. / Hegde, R.S. | |||||||||||||||
引用 | ジャーナル: Cell / 年: 2014タイトル: Structure of the mammalian ribosome-Sec61 complex to 3.4 Å resolution. 著者: Rebecca M Voorhees / Israel S Fernández / Sjors H W Scheres / Ramanujan S Hegde / ![]() 要旨: Cotranslational protein translocation is a universally conserved process for secretory and membrane protein biosynthesis. Nascent polypeptides emerging from a translating ribosome are either ...Cotranslational protein translocation is a universally conserved process for secretory and membrane protein biosynthesis. Nascent polypeptides emerging from a translating ribosome are either transported across or inserted into the membrane via the ribosome-bound Sec61 channel. Here, we report structures of a mammalian ribosome-Sec61 complex in both idle and translating states, determined to 3.4 and 3.9 Å resolution. The data sets permit building of a near-complete atomic model of the mammalian ribosome, visualization of A/P and P/E hybrid-state tRNAs, and analysis of a nascent polypeptide in the exit tunnel. Unprecedented chemical detail is observed for both the ribosome-Sec61 interaction and the conformational state of Sec61 upon ribosome binding. Comparison of the maps from idle and translating complexes suggests how conformational changes to the Sec61 channel could facilitate translocation of a secreted polypeptide. The high-resolution structure of the mammalian ribosome-Sec61 complex provides a valuable reference for future functional and structural studies. | |||||||||||||||
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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: Molmil Jmol/JSmol |
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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 | 3j7r.cif.gz | 5.5 MB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb3j7r.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 3j7r.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/j7/3j7r ftp://data.pdbj.org/pub/pdb/validation_reports/j7/3j7r | HTTPS FTP |
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-関連構造データ
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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
-RNA鎖 , 7種, 7分子 578S2S4S5S6
| #1: RNA鎖 | 分子量: 1206101.875 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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| #2: RNA鎖 | 分子量: 38691.914 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
| #3: RNA鎖 | 分子量: 50143.648 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
| #50: RNA鎖 | 分子量: 561958.812 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
| #84: RNA鎖 | 分子量: 3039.740 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
| #85: RNA鎖 | 分子量: 23874.191 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
| #86: RNA鎖 | 分子量: 24484.555 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
+Ribosomal protein ... , 76種, 76分子 ABCDEFGHIJLMNOPQRSTUVWXYZabcde...
-タンパク質 , 2種, 2分子 12
| #47: タンパク質 | 分子量: 43496.219 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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| #48: タンパク質 | 分子量: 7752.325 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
-タンパク質・ペプチド , 1種, 1分子 3
| #49: タンパク質・ペプチド | 分子量: 3081.790 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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-非ポリマー , 2種, 170分子 


| #87: 化合物 | ChemComp-MG / #88: 化合物 | ChemComp-ZN / |
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-詳細
| Has protein modification | Y |
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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 |
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試料調製
| 構成要素 | 名称: The 80S-Sec61 complex purified from porcine pancreas タイプ: RIBOSOME |
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| 緩衝液 | 名称: 50 mM HEPES, 200 mM potassium acetate, 15 mM magnesium acetate, 1 mM DTT, 0.25% Digitonin pH: 7.5 詳細: 50 mM HEPES, 200 mM potassium acetate, 15 mM magnesium acetate, 1 mM DTT, 0.25% Digitonin |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 試料支持 | 詳細: Quantifoil R2/2 400 mesh copper grids |
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / Temp: 120 K 詳細: 3 uL sample was incubated on the grid for 30 seconds and blotted for 9 seconds before being plunged into liquid ethane (FEI VITROBOT MARK IV). |
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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: FEI TITAN KRIOS / 日付: 2014年4月7日 |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: OTHER |
| 電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 59000 X / 倍率(補正後): 104478 X / 最大 デフォーカス(公称値): 3500 nm / 最小 デフォーカス(公称値): 2500 nm / Cs: 2.7 mm |
| 試料ホルダ | 資料ホルダタイプ: FEI TITAN KRIOS AUTOGRID HOLDER / 温度: 70 K / 傾斜角・最大: 0 ° / 傾斜角・最小: 0 ° |
| 撮影 | 電子線照射量: 27 e/Å2 フィルム・検出器のモデル: FEI FALCON II (4k x 4k) 詳細: Back-thinned |
| 放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
| 放射波長 | 相対比: 1 |
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解析
| EMソフトウェア |
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| CTF補正 | 詳細: Each particle | |||||||||||||||||||||||||||||||||||
| 対称性 | 点対称性: C1 (非対称) | |||||||||||||||||||||||||||||||||||
| 3次元再構成 | 手法: Single particle / 解像度: 3.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 14723 / ピクセルサイズ(公称値): 1.34 Å / 対称性のタイプ: POINT | |||||||||||||||||||||||||||||||||||
| 原子モデル構築 | B value: 37 / プロトコル: OTHER / 空間: RECIPROCAL / Target criteria: R-factor and FSC / 詳細: METHOD--Maximum likelihood | |||||||||||||||||||||||||||||||||||
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| 精密化ステップ | サイクル: LAST
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