+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6i7o | ||||||||||||
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タイトル | The structure of a di-ribosome (disome) as a unit for RQC and NGD quality control pathways recognition. | ||||||||||||
要素 |
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キーワード | TRANSLATION (翻訳 (生物学)) / ribosome (リボソーム) / disome / di-ribosome / stalling | ||||||||||||
機能・相同性 | 機能・相同性情報 maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, LSU-rRNA,5S) / negative regulation of glucose mediated signaling pathway / negative regulation of translational frameshifting / Protein methylation / RMTs methylate histone arginines / positive regulation of translational fidelity / mTORC1-mediated signalling / ribosome-associated ubiquitin-dependent protein catabolic process / ヒドロキシル化 / GDP-dissociation inhibitor activity ...maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, LSU-rRNA,5S) / negative regulation of glucose mediated signaling pathway / negative regulation of translational frameshifting / Protein methylation / RMTs methylate histone arginines / positive regulation of translational fidelity / mTORC1-mediated signalling / ribosome-associated ubiquitin-dependent protein catabolic process / ヒドロキシル化 / GDP-dissociation inhibitor activity / : / pre-mRNA 5'-splice site binding / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / Formation of the ternary complex, and subsequently, the 43S complex / Translation initiation complex formation / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Ribosomal scanning and start codon recognition / preribosome, small subunit precursor / response to cycloheximide / mRNA destabilization / Major pathway of rRNA processing in the nucleolus and cytosol / SRP-dependent cotranslational protein targeting to membrane / 90S preribosome / GTP hydrolysis and joining of the 60S ribosomal subunit / Formation of a pool of free 40S subunits / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / negative regulation of mRNA splicing, via spliceosome / protein-RNA complex assembly / ribosomal small subunit export from nucleus / preribosome, large subunit precursor / L13a-mediated translational silencing of Ceruloplasmin expression / translation regulator activity / ribosomal large subunit export from nucleus / G-protein alpha-subunit binding / 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) / regulation of translational fidelity / positive regulation of protein kinase activity / rescue of stalled ribosome / translational termination / maturation of SSU-rRNA / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / ribosomal large subunit biogenesis / DNA-(apurinic or apyrimidinic site) endonuclease activity / cellular response to amino acid starvation / ribosome assembly / small-subunit processome / protein kinase C binding / maintenance of translational fidelity / オートファジー / modification-dependent protein catabolic process / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / protein tag activity / ribosomal small subunit assembly / rRNA processing / cytoplasmic stress granule / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / ribosome binding / リボソーム生合成 / small ribosomal subunit / 5S rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / negative regulation of translation / rRNA binding / protein ubiquitination / リボソーム / structural constituent of ribosome / positive regulation of protein phosphorylation / 翻訳 (生物学) / G protein-coupled receptor signaling pathway / negative regulation of gene expression / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / 核小体 / ミトコンドリア / RNA binding / zinc ion binding / 核質 / metal ion binding / 細胞核 / 細胞質基質 / 細胞質 類似検索 - 分子機能 | ||||||||||||
生物種 | Saccharomyces cerevisiae (パン酵母) | ||||||||||||
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: 5.3 Å | ||||||||||||
データ登録者 | Tesina, P. / Cheng, J. / Becker, T. / Beckmann, R. | ||||||||||||
資金援助 | ドイツ, 日本, 3件
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引用 | ジャーナル: EMBO J / 年: 2019 タイトル: Collided ribosomes form a unique structural interface to induce Hel2-driven quality control pathways. 著者: Ken Ikeuchi / Petr Tesina / Yoshitaka Matsuo / Takato Sugiyama / Jingdong Cheng / Yasushi Saeki / Keiji Tanaka / Thomas Becker / Roland Beckmann / Toshifumi Inada / 要旨: Ribosome stalling triggers quality control pathways targeting the mRNA (NGD: no-go decay) and the nascent polypeptide (RQC: ribosome-associated quality control). RQC requires Hel2-dependent uS10 ...Ribosome stalling triggers quality control pathways targeting the mRNA (NGD: no-go decay) and the nascent polypeptide (RQC: ribosome-associated quality control). RQC requires Hel2-dependent uS10 ubiquitination and the RQT complex in yeast. Here, we report that Hel2-dependent uS10 ubiquitination and Slh1/Rqt2 are crucial for RQC and NGD induction within a di-ribosome (disome) unit, which consists of the leading stalled ribosome and the following colliding ribosome. Hel2 preferentially ubiquitinated a disome over a monosome on a quality control inducing reporter mRNA in an translation reaction. Cryo-EM analysis of the disome unit revealed a distinct structural arrangement suitable for recognition and modification by Hel2. The absence of the RQT complex or uS10 ubiquitination resulted in the elimination of NGD within the disome unit. Instead, we observed Hel2-mediated cleavages upstream of the disome, governed by initial Not4-mediated monoubiquitination of eS7 and followed by Hel2-mediated K63-linked polyubiquitination. We propose that Hel2-mediated ribosome ubiquitination is required both for canonical NGD (NGD) and RQC coupled to the disome and that RQC-uncoupled NGD outside the disome (NGD) can occur in a Not4-dependent manner. | ||||||||||||
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 | 6i7o.cif.gz | 8.7 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6i7o.ent.gz | 表示 | PDB形式 | |
PDBx/mmJSON形式 | 6i7o.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/i7/6i7o ftp://data.pdbj.org/pub/pdb/validation_reports/i7/6i7o | HTTPS FTP |
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-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-RNA鎖 , 9種, 13分子 BQYQBRYRBSYS22bnmnbmbl
#1: RNA鎖 | 分子量: 1097493.875 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) / 参照: GenBank: 834774822 #2: RNA鎖 | 分子量: 38951.105 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) / 参照: GenBank: 1329886537 #3: RNA鎖 | 分子量: 50376.758 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) / 参照: GenBank: 1489318609 #18: RNA鎖 | 分子量: 579761.938 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) / 参照: GenBank: 874346701 #80: RNA鎖 | | 分子量: 24468.551 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) / 参照: GenBank: 1329886529 #81: RNA鎖 | | 分子量: 24004.262 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) / 参照: GenBank: 176418 #82: RNA鎖 | | 分子量: 24501.539 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) #83: RNA鎖 | | 分子量: 24802.785 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) #84: RNA鎖 | | 分子量: 17904.270 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) |
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+60S ribosomal protein ... , 40種, 80分子 AWXWBAYABEYEBIYIBMYMBOYOAAXAADXDBDYDAGXGAJXJAMXMAQXQAUXUAXXX...
+40S ribosomal protein ... , 31種, 62分子 PPbQQbRRbAAbSSbBBbTTbUUbVVbWWbCCbXXbDDbYYbZZb...
-タンパク質 , 4種, 8分子 NNbOObAOXOBUYU
#50: タンパク質 | 分子量: 8329.946 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) / 参照: UniProt: P05759 #51: タンパク質 | 分子量: 34151.426 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) / 参照: UniProt: P38011 #75: タンパク質 | 分子量: 6032.321 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) / 参照: UniProt: P0CH08 #79: タンパク質 | 分子量: 33749.121 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Saccharomyces cerevisiae (パン酵母) / 参照: UniProt: P05317 |
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-非ポリマー , 1種, 15分子
#85: 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 | 名称: Cryo-EM structure of a native stalled di-ribosome (disome) complex from S. cerevisiae タイプ: RIBOSOME / Entity ID: #1-#84 / 由来: NATURAL |
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由来(天然) | 生物種: Saccharomyces cerevisiae (パン酵母) |
緩衝液 | pH: 7.2 |
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 |
-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 FIELDBright-field microscopy |
撮影 | 電子線照射量: 2.5 e/Å2 フィルム・検出器のモデル: FEI FALCON II (4k x 4k) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.14_3260: / 分類: 精密化 |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
対称性 | 点対称性: C1 (非対称) |
3次元再構成 | 解像度: 5.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 15739 / 対称性のタイプ: POINT |