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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: 8ut0 | |||||||||
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タイトル | Eukaryotic 80S ribosome with Reh1, eIF5A and A/P site tRNA | |||||||||
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![]() | RIBOSOME / ribosome assembly / translation | |||||||||
機能・相同性 | ![]() positive regulation of translational termination / positive regulation of translational elongation / regulation of amino acid metabolic process / negative regulation of glucose mediated signaling pathway / ribosomal subunit / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay ...positive regulation of translational termination / positive regulation of translational elongation / regulation of amino acid metabolic process / negative regulation of glucose mediated signaling pathway / ribosomal subunit / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / pre-mRNA 5'-splice site binding / Formation of the ternary complex, and subsequently, the 43S complex / Translation initiation complex formation / Ribosomal scanning and start codon recognition / nonfunctional rRNA decay / response to cycloheximide / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Major pathway of rRNA processing in the nucleolus and cytosol / mRNA destabilization / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / negative regulation of translational frameshifting / 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 / Formation of a pool of free 40S subunits / preribosome, large subunit precursor / L13a-mediated translational silencing of Ceruloplasmin expression / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit export from nucleus / G-protein alpha-subunit binding / 90S preribosome / positive regulation of protein kinase activity / translation elongation factor activity / ribosomal subunit export from nucleus / regulation of translational fidelity / protein-RNA complex assembly / 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) / maturation of LSU-rRNA / translation regulator activity / rescue of stalled ribosome / cellular response to amino acid starvation / ribosome assembly / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / protein kinase C binding / positive regulation of apoptotic signaling pathway / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / translational initiation / small-subunit processome / macroautophagy / maintenance of translational fidelity / modification-dependent protein catabolic process / protein tag activity / cytoplasmic stress granule / rRNA processing / ribosome biogenesis / ribosome binding / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / small ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / negative regulation of translation / rRNA binding / protein ubiquitination / ribosome / structural constituent of ribosome / G protein-coupled receptor signaling pathway / translation / ribonucleoprotein complex / negative regulation of gene expression / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / nucleolus / mitochondrion / RNA binding / zinc ion binding / nucleoplasm / metal ion binding / nucleus / cytosol / cytoplasm 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: 3.22 Å | |||||||||
![]() | Yelland, J.N. / Taylor, D.W. / Johnson, A.W. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: The assembly factor Reh1 is released from the ribosome during its initial round of translation. 著者: Sharmishtha Musalgaonkar / James N Yelland / Ruta Chitale / Shilpa Rao / Hakan Ozadam / David W Taylor / Can Cenik / Arlen W Johnson / ![]() 要旨: Assembly of functional ribosomal subunits and successfully delivering them to the translating pool is a prerequisite for protein synthesis and cell growth. In S. cerevisiae, the ribosome assembly ...Assembly of functional ribosomal subunits and successfully delivering them to the translating pool is a prerequisite for protein synthesis and cell growth. In S. cerevisiae, the ribosome assembly factor Reh1 binds to pre-60S subunits at a late stage during their cytoplasmic maturation. Previous work shows that the C-terminus of Reh1 inserts into the polypeptide exit tunnel of the pre-60S subunit. Here, we show that Reh1-bound nascent 60S subunits associate with 40S subunits to form actively translating ribosomes. Using selective ribosome profiling, we found that Reh1-bound ribosomes populate open reading frames near start codons. Reh1-bound ribosomes are also strongly enriched for initiator tRNA, indicating they are associated with early elongation. Using cryo-electron microscopy to image Reh1-bound 80S ribosomes, we found they contain A site peptidyl tRNA, P site tRNA and eIF5A, indicating that Reh1 does not dissociate from 60S until translation elongation. We propose that Reh1 is displaced by the elongating peptide chain, making it the last assembly factor released from the nascent 60S subunit during its initial round of translation. | |||||||||
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 | ![]() | 5.8 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
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 42525MC ![]() 8utiC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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 , 7種, 7分子 2ABCmnD
#1: RNA鎖 | 分子量: 579761.938 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
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#35: RNA鎖 | 分子量: 1096842.375 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
#36: RNA鎖 | 分子量: 38951.105 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
#37: RNA鎖 | 分子量: 50682.922 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
#81: RNA鎖 | 分子量: 24378.408 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
#82: RNA鎖 | 分子量: 24222.500 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
#83: RNA鎖 | 分子量: 3217.021 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
+40S ribosomal protein ... , 33種, 33分子 SPSQSESRSASSSBSTSUSVSWSCSXSDSYSZSFSGSHSISJSaSbScSdSeSfSMSgSN...
+60S ribosomal protein ... , 42種, 42分子 LDLELFLGLHLILJLKLLLMLNLOLPLQLRLSLTLULVLWLXLYLZLaLbLcLdLeLfLg...
-タンパク質 , 2種, 2分子 Lsz
#79: タンパク質 | 分子量: 17222.406 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
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#80: タンパク質 | 分子量: 67173.633 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
-非ポリマー , 1種, 1分子 
#85: 化合物 | ChemComp-3HE / |
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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: Eukaryotic 80S ribosome with Reh1, eIF5A and A/P site tRNA タイプ: RIBOSOME / Entity ID: #1-#83 / 由来: NATURAL |
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分子量 | 実験値: NO |
由来(天然) | 生物種: ![]() ![]() |
緩衝液 | pH: 7 |
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 / 湿度: 100 % / 凍結前の試料温度: 277 K |
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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): 2500 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 70 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 3.22 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 23734 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 102.15 Å2 | ||||||||||||||||||||||||
拘束条件 |
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