+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-2650 | |||||||||
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タイトル | Structure of the mammalian ribosome-Sec61 complex | |||||||||
マップデータ | Final map for mammalian ribosome in complex with Sec61 in idle configuration with the large subunit masked along refinement | |||||||||
試料 |
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キーワード | translation / ribosome / mammalian / sec61 | |||||||||
機能・相同性 | 機能・相同性情報 regulation of cell cycle => GO:0051726 / regulation of cell cycle => GO:0051726 / : / 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) ...regulation of cell cycle => GO:0051726 / regulation of cell cycle => GO:0051726 / : / 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) / protein-transporting ATPase activity / translation at presynapse / embryonic brain development / alpha-beta T cell differentiation / cytoplasmic side of rough endoplasmic reticulum membrane / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / regulation of translation involved in cellular response to UV / protein-DNA complex disassembly / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / organelle membrane / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / protein localization to nucleus / protein targeting / protein-RNA complex assembly / cellular response to actinomycin D / negative regulation of ubiquitin-dependent protein catabolic process / membrane => GO:0016020 / translation regulator activity / rough endoplasmic reticulum / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / maturation of LSU-rRNA / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / innate immune response in mucosa / positive regulation of translation / cellular response to gamma radiation / mRNA 5'-UTR binding / transcription coactivator binding / cytoplasmic ribonucleoprotein granule / modification-dependent protein catabolic process / protein tag activity / rRNA processing / antimicrobial humoral immune response mediated by antimicrobial peptide / large ribosomal subunit / protein transport / antibacterial humoral response / regulation of translation / heparin binding / presynapse / 5S rRNA binding / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / postsynaptic density / protein stabilization / rRNA binding / defense response to Gram-positive bacterium / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / glutamatergic synapse / positive regulation of cell population proliferation / ubiquitin protein ligase binding / synapse / positive regulation of gene expression / nucleolus / negative regulation of transcription by RNA polymerase II / endoplasmic reticulum / RNA binding / extracellular space / nucleoplasm / identical protein binding / nucleus / metal ion binding / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Sus scrofa domesticus (ブタ) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.4 Å | |||||||||
データ登録者 | Voorhees RM / Fernandez IS / Scheres SHW / Hegde R | |||||||||
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. | |||||||||
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 | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_2650.map.gz | 31.1 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-2650-v30.xml emd-2650.xml | 8.6 KB 8.6 KB | 表示 表示 | EMDBヘッダ |
画像 | EMD-2650.png | 307.4 KB | ||
その他 | emd_2650_half_map_1.map.gz emd_2650_half_map_2.map.gz | 209.7 MB 209.8 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-2650 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-2650 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_2650_validation.pdf.gz | 337.1 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_2650_full_validation.pdf.gz | 336.7 KB | 表示 | |
XML形式データ | emd_2650_validation.xml.gz | 7.2 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-2650 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-2650 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_2650.map.gz / 形式: CCP4 / 大きさ: 276 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Final map for mammalian ribosome in complex with Sec61 in idle configuration with the large subunit masked along refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.34 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-添付マップデータ: emd 2650 half map 1.map
ファイル | emd_2650_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-添付マップデータ: emd 2650 half map 2.map
ファイル | emd_2650_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
-全体 : Mammalian ribosome in complex with Sec61 in a idle configuration ...
全体 | 名称: Mammalian ribosome in complex with Sec61 in a idle configuration with the large subunit (60S) masked during processing. |
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要素 |
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-超分子 #1000: Mammalian ribosome in complex with Sec61 in a idle configuration ...
超分子 | 名称: Mammalian ribosome in complex with Sec61 in a idle configuration with the large subunit (60S) masked during processing. タイプ: sample / ID: 1000 / Number unique components: 2 |
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-超分子 #1: Mammalian ribosome
超分子 | 名称: Mammalian ribosome / タイプ: complex / ID: 1 / 組換発現: No / Ribosome-details: ribosome-eukaryote: ALL |
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由来(天然) | 生物種: Sus scrofa domesticus (ブタ) / 別称: Domestic Pig / 組織: pancreas |
-分子 #1: Sec61
分子 | 名称: Sec61 / タイプ: protein_or_peptide / ID: 1 / 組換発現: No |
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由来(天然) | 生物種: Sus scrofa domesticus (ブタ) / 別称: Domestic Pig |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.5 詳細: 50mM HEPES, 200mM K-acetate, 15mM Mg-acetate, 1mM DTT |
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グリッド | 詳細: Quantifoil R2/2 400 mesh copper grids. |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 90 % / チャンバー内温度: 120 K / 装置: FEI VITROBOT MARK IV 手法: 3uL of sampled was incubated on the grid for 30 seconds before blotting for 9 second |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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日付 | 2014年4月7日 |
撮影 | カテゴリ: CCD フィルム・検出器のモデル: FEI FALCON II (4k x 4k) 実像数: 1900 / 平均電子線量: 25 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: OTHER / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 0.003 µm / 最小 デフォーカス(公称値): 0.001 µm / 倍率(公称値): 47000 |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
CTF補正 | 詳細: Each particle |
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最終 再構成 | 想定した対称性 - 点群: C1 (非対称) / 解像度のタイプ: BY AUTHOR / 解像度: 3.4 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: Relion / 使用した粒子像数: 80019 |