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基本情報
登録情報 | データベース: PDB / ID: 7qvp | ||||||
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タイトル | Human collided disome (di-ribosome) stalled on XBP1 mRNA | ||||||
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![]() | TRANSLATION / disome / di-ribosome / XBP1 / ribosome / collision | ||||||
機能・相同性 | ![]() Translation initiation complex formation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / L13a-mediated translational silencing of Ceruloplasmin expression / SRP-dependent cotranslational protein targeting to membrane / 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) / Major pathway of rRNA processing in the nucleolus and cytosol ...Translation initiation complex formation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / L13a-mediated translational silencing of Ceruloplasmin expression / SRP-dependent cotranslational protein targeting to membrane / 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) / Major pathway of rRNA processing in the nucleolus and cytosol / Formation of the ternary complex, and subsequently, the 43S complex / Formation of a pool of free 40S subunits / SRP-dependent cotranslational protein targeting to membrane / Major pathway of rRNA processing in the nucleolus and cytosol / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Translation initiation complex formation / Ribosomal scanning and start codon recognition / L13a-mediated translational silencing of Ceruloplasmin expression / GTP hydrolysis and joining of the 60S ribosomal subunit / translation at presynapse / male meiosis I / negative regulation of protein neddylation / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / negative regulation of formation of translation preinitiation complex / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / positive regulation of endodeoxyribonuclease activity / negative regulation of DNA repair / negative regulation of RNA splicing / GAIT complex / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / supercoiled DNA binding / TORC2 complex binding / alpha-beta T cell differentiation / neural crest cell differentiation / NF-kappaB complex / positive regulation of ubiquitin-protein transferase activity / oxidized purine DNA binding / ubiquitin-like protein conjugating enzyme binding / negative regulation of bicellular tight junction assembly / rRNA modification in the nucleus and cytosol / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / laminin receptor activity / negative regulation of ubiquitin protein ligase activity / protein kinase A binding / Ribosomal scanning and start codon recognition / homeostatic process / Translation initiation complex formation / organelle membrane / positive regulation of T cell receptor signaling pathway / macrophage chemotaxis / fibroblast growth factor binding / lung morphogenesis / positive regulation of natural killer cell proliferation / positive regulation of activated T cell proliferation / Protein hydroxylation / TOR signaling / SARS-CoV-1 modulates host translation machinery / cellular response to ethanol / mTORC1-mediated signalling / iron-sulfur cluster binding / Peptide chain elongation / Selenocysteine synthesis / 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) / Eukaryotic Translation Termination / ubiquitin ligase inhibitor activity / blastocyst development / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / negative regulation of ubiquitin-dependent protein catabolic process / positive regulation of signal transduction by p53 class mediator / Viral mRNA Translation / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / protein localization to nucleus / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / positive regulation of protein binding / Major pathway of rRNA processing in the nucleolus and cytosol / protein targeting / 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) / protein-RNA complex assembly / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Protein methylation / maturation of LSU-rRNA / Nuclear events stimulated by ALK signaling in cancer / spindle assembly / rough endoplasmic reticulum / laminin binding / translation regulator activity / positive regulation of cell cycle / translation initiation factor binding / gastrulation / Hsp70 protein binding / DNA-(apurinic or apyrimidinic site) endonuclease activity / positive regulation of microtubule polymerization 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 Å | ||||||
![]() | Denk, T.G. / Tesina, P. / Beckmann, R. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: A distinct mammalian disome collision interface harbors K63-linked polyubiquitination of uS10 to trigger hRQT-mediated subunit dissociation. 著者: Momoko Narita / Timo Denk / Yoshitaka Matsuo / Takato Sugiyama / Chisato Kikuguchi / Sota Ito / Nichika Sato / Toru Suzuki / Satoshi Hashimoto / Iva Machová / Petr Tesina / Roland Beckmann / Toshifumi Inada / ![]() ![]() ![]() 要旨: Translational stalling events that result in ribosome collisions induce Ribosome-associated Quality Control (RQC) in order to degrade potentially toxic truncated nascent proteins. For RQC induction, ...Translational stalling events that result in ribosome collisions induce Ribosome-associated Quality Control (RQC) in order to degrade potentially toxic truncated nascent proteins. For RQC induction, the collided ribosomes are first marked by the Hel2/ZNF598 E3 ubiquitin ligase to recruit the RQT complex for subunit dissociation. In yeast, uS10 is polyubiquitinated by Hel2, whereas eS10 is preferentially monoubiquitinated by ZNF598 in human cells for an unknown reason. Here, we characterize the ubiquitination activity of ZNF598 and its importance for human RQT-mediated subunit dissociation using the endogenous XBP1u and poly(A) translation stallers. Cryo-EM analysis of a human collided disome reveals a distinct composite interface, with substantial differences to yeast collided disomes. Biochemical analysis of collided ribosomes shows that ZNF598 forms K63-linked polyubiquitin chains on uS10, which are decisive for mammalian RQC initiation. The human RQT (hRQT) complex composed only of ASCC3, ASCC2 and TRIP4 dissociates collided ribosomes dependent on the ATPase activity of ASCC3 and the ubiquitin-binding capacity of ASCC2. The hRQT-mediated subunit dissociation requires the K63-linked polyubiquitination of uS10, while monoubiquitination of eS10 or uS10 is not sufficient. Therefore, we conclude that ZNF598 functionally marks collided mammalian ribosomes by K63-linked polyubiquitination of uS10 for the trimeric hRQT complex-mediated subunit dissociation. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 9.1 MB | 表示 | ![]() |
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PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.6 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 2 MB | 表示 | |
XML形式データ | ![]() | 625.8 KB | 表示 | |
CIF形式データ | ![]() | 1.1 MB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 14181MC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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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 , 9種, 14分子 A4A5B4D5B5CCL1L8L5L6L7L9S2S3
#1: RNA鎖 | 分子量: 4241.363 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) ![]() | ||||||||||||
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#2: RNA鎖 | 分子量: 3322.866 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() | ||||||||||||
#3: RNA鎖 | 分子量: 24485.539 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #4: RNA鎖 | | 分子量: 24231.510 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() #5: RNA鎖 | | 分子量: 24004.262 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() #6: RNA鎖 | 分子量: 50449.812 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #7: RNA鎖 | 分子量: 1690723.500 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #8: RNA鎖 | 分子量: 38998.078 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #85: RNA鎖 | 分子量: 602776.875 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() |
+60S ribosomal protein ... , 40種, 78分子 LAMALBMBLCMCLDMDLEMELFMFLGMGLHMHLIMILJMJLLMLLMMMLNMNLOMOLPLQ...
-タンパク質 , 5種, 9分子 LYMYLjMjLmMmRgSgRh
#32: タンパク質 | 分子量: 17303.363 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #43: タンパク質 | 分子量: 10379.280 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #46: タンパク質 | 分子量: 14758.394 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #83: タンパク質 | 分子量: 35115.652 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #84: タンパク質 | | 分子量: 18004.041 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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+40S ribosomal protein ... , 31種, 61分子 RASARBSBRCSCRDSDRESERFSFRGSGRHSHRISIRJSJRKSKRLSLRNSNROSORPSP...
-詳細
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 |
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試料調製
構成要素 | 名称: human collided disome stalled on XBP1 staller / タイプ: RIBOSOME / Entity ID: all / 由来: NATURAL |
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由来(天然) | 生物種: ![]() |
緩衝液 | pH: 7.5 |
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 |
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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 |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3500 nm / 最小 デフォーカス(公称値): 400 nm |
撮影 | 電子線照射量: 43.6 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
ソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 53848 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
精密化 | 立体化学のターゲット値: CDL v1.2 | ||||||||||||||||||||||||
拘束条件 |
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