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基本情報
登録情報 | データベース: PDB / ID: 9c3h | ||||||||||||||||||||||||
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タイトル | Structure of the CNOT3-bound human 80S ribosome with tRNA-ARG in the P-site. | ||||||||||||||||||||||||
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![]() | RIBOSOME / mRNA degradation / CCR4-NOT complex / tRNA | ||||||||||||||||||||||||
機能・相同性 | ![]() CCR4-NOT core complex / CCR4-NOT complex / regulation of stem cell population maintenance / nuclear-transcribed mRNA poly(A) tail shortening / trophectodermal cell differentiation / Deadenylation of mRNA / translation at presynapse / embryonic brain development / exit from mitosis / eukaryotic 80S initiation complex ...CCR4-NOT core complex / CCR4-NOT complex / regulation of stem cell population maintenance / nuclear-transcribed mRNA poly(A) tail shortening / trophectodermal cell differentiation / Deadenylation of mRNA / translation at presynapse / embryonic brain development / exit from mitosis / eukaryotic 80S initiation complex / negative regulation of protein neddylation / response to insecticide / optic nerve development / M-decay: degradation of maternal mRNAs by maternally stored factors / negative regulation of endoplasmic reticulum unfolded protein response / regulation of G1 to G0 transition / axial mesoderm development / oxidized pyrimidine DNA binding / response to TNF agonist / negative regulation of formation of translation preinitiation complex / positive regulation of base-excision repair / regulation of translation involved in cellular response to UV / ribosomal protein import into nucleus / positive regulation of respiratory burst involved in inflammatory response / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / protein-DNA complex disassembly / positive regulation of gastrulation / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / 90S preribosome assembly / protein tyrosine kinase inhibitor activity / IRE1-RACK1-PP2A complex / positive regulation of endodeoxyribonuclease activity / nucleolus organization / regulatory ncRNA-mediated gene silencing / positive regulation of Golgi to plasma membrane protein transport / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / retinal ganglion cell axon guidance / TNFR1-mediated ceramide production / negative regulation of RNA splicing / negative regulation of DNA repair / GAIT complex / positive regulation of DNA damage response, signal transduction by p53 class mediator / TORC2 complex binding / alpha-beta T cell differentiation / G1 to G0 transition / supercoiled DNA binding / neural crest cell differentiation / TP53 regulates transcription of additional cell cycle genes whose exact role in the p53 pathway remain uncertain / positive regulation of ubiquitin-protein transferase activity / NF-kappaB complex / cysteine-type endopeptidase activator activity involved in apoptotic process / oxidized purine DNA binding / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / negative regulation of bicellular tight junction assembly / regulation of establishment of cell polarity / ubiquitin-like protein conjugating enzyme binding / middle ear morphogenesis / negative regulation of phagocytosis / 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 / ion channel inhibitor activity / protein kinase A binding / pigmentation / Ribosomal scanning and start codon recognition / homeostatic process / Translation initiation complex formation / positive regulation of mitochondrial depolarization / macrophage chemotaxis / positive regulation of T cell receptor signaling pathway / fibroblast growth factor binding / negative regulation of Wnt signaling pathway / lung morphogenesis / monocyte chemotaxis / positive regulation of activated T cell proliferation / positive regulation of natural killer cell proliferation / negative regulation of translational frameshifting / Protein hydroxylation / TOR signaling / BH3 domain binding / regulation of cell division / SARS-CoV-1 modulates host translation machinery / mTORC1-mediated signalling / cellular response to ethanol / iron-sulfur cluster binding / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / 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 / cellular response to actinomycin D / Response of EIF2AK4 (GCN2) to amino acid deficiency / positive regulation of signal transduction by p53 class mediator / negative regulation of ubiquitin-dependent protein catabolic process 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: 2 Å | ||||||||||||||||||||||||
![]() | Erzberger, J.P. / Cruz, V.E. | ||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Specific tRNAs promote mRNA decay by recruiting the CCR4-NOT complex to translating ribosomes. 著者: Xiaoqiang Zhu / Victor Emmanuel Cruz / He Zhang / Jan P Erzberger / Joshua T Mendell / ![]() 要旨: The CCR4-NOT complex is a major regulator of eukaryotic messenger RNA (mRNA) stability. Slow decoding during translation promotes association of CCR4-NOT with ribosomes, accelerating mRNA degradation. ...The CCR4-NOT complex is a major regulator of eukaryotic messenger RNA (mRNA) stability. Slow decoding during translation promotes association of CCR4-NOT with ribosomes, accelerating mRNA degradation. We applied selective ribosome profiling to further investigate the determinants of CCR4-NOT recruitment to ribosomes in mammalian cells. This revealed that specific arginine codons in the P-site are strong signals for ribosomal recruitment of human CNOT3, a CCR4-NOT subunit. Cryo-electron microscopy and transfer RNA (tRNA) mutagenesis demonstrated that the D-arms of select arginine tRNAs interact with CNOT3 and promote its recruitment whereas other tRNA D-arms sterically clash with CNOT3. These effects link codon content to mRNA stability. Thus, in addition to their canonical decoding function, tRNAs directly engage regulatory complexes during translation, a mechanism we term P-site tRNA-mediated mRNA decay. | ||||||||||||||||||||||||
履歴 |
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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 | ![]() | 5.6 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 | ![]() | 2.1 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 2.3 MB | 表示 | |
XML形式データ | ![]() | 360.2 KB | 表示 | |
CIF形式データ | ![]() | 657.3 KB | 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 | ![]() 45170MC ![]() 9c3iC 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 , 6種, 6分子 L1L5L9S4S2S5
#1: RNA鎖 | 分子量: 50463.840 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: 1640938.625 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#4: RNA鎖 | 分子量: 38998.078 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#6: RNA鎖 | 分子量: 24661.789 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#48: RNA鎖 | 分子量: 603582.125 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#49: RNA鎖 | 分子量: 2847.742 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
+Large ribosomal subunit protein ... , 41種, 41分子 L8LBLCLDLELFLGLHLILJLKLMLNLOLPLQLRLSLTLULVLWLYLZLaLbLcLdLeLf...
-タンパク質・ペプチド , 1種, 1分子 NC
#46: タンパク質・ペプチド | 分子量: 3258.725 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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+Small ribosomal subunit protein ... , 30種, 30分子 S1SASCSDSESGSHSISJSKSLSMSNSOSPSQSSSTSUSVSWSXSZSaSbScSdSfSoSy
-タンパク質 , 5種, 5分子 SBSYSeSgSz
#51: タンパク質 | 分子量: 64125.828 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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#72: タンパク質 | 分子量: 15366.284 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#78: タンパク質 | 分子量: 14415.724 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#80: タンパク質 | 分子量: 35115.652 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#83: 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) ![]() |
-非ポリマー , 5種, 9914分子 








#84: 化合物 | ChemComp-MG / #85: 化合物 | ChemComp-K / #86: 化合物 | ChemComp-B3P / | #87: 化合物 | ChemComp-ZN / #88: 水 | ChemComp-HOH / | |
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-詳細
研究の焦点であるリガンドがあるか | N |
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Has protein modification | Y |
-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: 80S ribosome in complex with CNOT3 and P-site tRNA ARG CCG-1 タイプ: RIBOSOME / Entity ID: #1-#54, #56-#83 / 由来: NATURAL |
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分子量 | 値: 4.3 MDa / 実験値: NO |
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): 1900 nm / 最小 デフォーカス(公称値): 600 nm |
撮影 | 電子線照射量: 17 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
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解析
CTF補正 | タイプ: NONE |
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3次元再構成 | 解像度: 2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 276000 / 対称性のタイプ: POINT |