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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: 6ip8 | ||||||
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| タイトル | Cryo-EM structure of the HCV IRES dependently initiated CMV-stalled 80S ribosome (Structure iv) | ||||||
要素 |
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キーワード | RIBOSOME / Translation | ||||||
| 機能・相同性 | 機能・相同性情報translation termination factor activity / translation release factor complex / cytoplasmic translational termination / regulation of translational termination / translation release factor activity / translation release factor activity, codon specific / protein methylation / translation at presynapse / exit from mitosis / optic nerve development ...translation termination factor activity / translation release factor complex / cytoplasmic translational termination / regulation of translational termination / translation release factor activity / translation release factor activity, codon specific / protein methylation / translation at presynapse / exit from mitosis / optic nerve development / response to insecticide / sequence-specific mRNA binding / regulation of translation involved in cellular response to UV / eukaryotic 80S initiation complex / negative regulation of formation of translation preinitiation complex / axial mesoderm development / negative regulation of endoplasmic reticulum unfolded protein response / ribosomal protein import into nucleus / regulation of G1 to G0 transition / retinal ganglion cell axon guidance / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / protein-DNA complex disassembly / positive regulation of ubiquitin-protein transferase activity / positive regulation of respiratory burst involved in inflammatory response / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / positive regulation of gastrulation / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage / protein tyrosine kinase inhibitor activity / 90S preribosome assembly / peptidyl-tRNA hydrolase activity / IRE1-RACK1-PP2A complex / positive regulation of Golgi to plasma membrane protein transport / nucleolus organization / alpha-beta T cell differentiation / positive regulation of DNA-templated transcription initiation / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / TNFR1-mediated ceramide production / positive regulation of DNA damage response, signal transduction by p53 class mediator / GAIT complex / negative regulation of RNA splicing / TORC2 complex binding / neural crest cell differentiation / supercoiled DNA binding / NF-kappaB complex / negative regulation of DNA repair / G1 to G0 transition / cytoplasmic translational initiation / oxidized purine DNA binding / cysteine-type endopeptidase activator activity involved in apoptotic process / middle ear morphogenesis / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / regulation of establishment of cell polarity / rRNA modification in the nucleus and cytosol / negative regulation of bicellular tight junction assembly / ubiquitin-like protein conjugating enzyme binding / negative regulation of phagocytosis / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / protein kinase A binding / Ribosomal scanning and start codon recognition / ion channel inhibitor activity / laminin receptor activity / Translation initiation complex formation / homeostatic process / pigmentation / positive regulation of mitochondrial depolarization / macrophage chemotaxis / lung morphogenesis / negative regulation of Wnt signaling pathway / positive regulation of natural killer cell proliferation / fibroblast growth factor binding / male meiosis I / monocyte chemotaxis / BH3 domain binding / Protein hydroxylation / negative regulation of translational frameshifting / SARS-CoV-1 modulates host translation machinery / TOR signaling / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / mTORC1-mediated signalling / positive regulation of GTPase activity / iron-sulfur cluster binding / Peptide chain elongation / regulation of cell division / Selenocysteine synthesis / Formation of a pool of free 40S subunits / cellular response to ethanol / blastocyst development / Eukaryotic Translation Termination / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / SRP-dependent cotranslational protein targeting to membrane / Response of EIF2AK4 (GCN2) to amino acid deficiency / negative regulation of protein binding / protein serine/threonine kinase inhibitor activity / Viral mRNA Translation / ubiquitin ligase inhibitor activity / negative regulation of respiratory burst involved in inflammatory response 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト) | ||||||
| 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: 3.9 Å | ||||||
データ登録者 | Yokoyama, T. / Shigematsu, H. / Shirouzu, M. / Imataka, H. / Ito, T. | ||||||
| 資金援助 | 日本, 1件
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引用 | ジャーナル: Mol Cell / 年: 2019タイトル: HCV IRES Captures an Actively Translating 80S Ribosome. 著者: Takeshi Yokoyama / Kodai Machida / Wakana Iwasaki / Tomoaki Shigeta / Madoka Nishimoto / Mari Takahashi / Ayako Sakamoto / Mayumi Yonemochi / Yoshie Harada / Hideki Shigematsu / Mikako ...著者: Takeshi Yokoyama / Kodai Machida / Wakana Iwasaki / Tomoaki Shigeta / Madoka Nishimoto / Mari Takahashi / Ayako Sakamoto / Mayumi Yonemochi / Yoshie Harada / Hideki Shigematsu / Mikako Shirouzu / Hisashi Tadakuma / Hiroaki Imataka / Takuhiro Ito / ![]() 要旨: Translation initiation of hepatitis C virus (HCV) genomic RNA is induced by an internal ribosome entry site (IRES). Our cryoelectron microscopy (cryo-EM) analysis revealed that the HCV IRES binds to ...Translation initiation of hepatitis C virus (HCV) genomic RNA is induced by an internal ribosome entry site (IRES). Our cryoelectron microscopy (cryo-EM) analysis revealed that the HCV IRES binds to the solvent side of the 40S platform of the cap-dependently translating 80S ribosome. Furthermore, we obtained the cryo-EM structures of the HCV IRES capturing the 40S subunit of the IRES-dependently translating 80S ribosome. In the elucidated structures, the HCV IRES "body," consisting of domain III except for subdomain IIIb, binds to the 40S subunit, while the "long arm," consisting of domain II, remains flexible and does not impede the ongoing translation. Biochemical experiments revealed that the cap-dependently translating ribosome becomes a better substrate for the HCV IRES than the free ribosome. Therefore, the HCV IRES is likely to efficiently induce the translation initiation of its downstream mRNA with the captured translating ribosome as soon as the ongoing translation terminates. | ||||||
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構造の表示
| ムービー |
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| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 6ip8.cif.gz | 4.9 MB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb6ip8.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 6ip8.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/ip/6ip8 ftp://data.pdbj.org/pub/pdb/validation_reports/ip/6ip8 | HTTPS FTP |
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-関連構造データ
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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 1A1B1C2mzvzyzz
| #1: RNA鎖 | 分子量: 1640182.000 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
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| #2: RNA鎖 | 分子量: 38998.078 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
| #3: RNA鎖 | 分子量: 50449.812 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
| #46: RNA鎖 | 分子量: 602752.875 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
| #80: RNA鎖 | 分子量: 3708.248 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
| #83: RNA鎖 | 分子量: 24189.314 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
| #84: RNA鎖 | 分子量: 93491.078 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
+60S ribosomal protein ... , 41種, 41分子 1D1E1F1G1H2A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2S2T2U2V2W2X2Y...
-タンパク質 , 4種, 4分子 2g3F3Rzw
| #41: タンパク質 | 分子量: 14758.394 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P62987 |
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| #67: 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) Homo sapiens (ヒト) / 参照: UniProt: P63244 |
| #79: 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) Homo sapiens (ヒト) / 参照: UniProt: P62979 |
| #81: タンパク質 | 分子量: 48476.105 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P62495 |
+40S ribosomal protein ... , 31種, 31分子 2n2o2p2q2r2s2t2u2v2w2x2y2z20213A3B3C3D3E3G3H3I3J3K3L3M3N3O3P3Q
-タンパク質・ペプチド , 1種, 1分子 zx
| #82: タンパク質・ペプチド | 分子量: 1865.305 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
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-詳細
| Has protein modification | Y |
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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 80S ribosome / タイプ: RIBOSOME / Entity ID: all / 由来: NATURAL |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 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 |
| 試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 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: Talos Arctica / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TECNAI ARCTICA |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 23500 X / 倍率(補正後): 33557 X / Cs: 2.7 mm / C2レンズ絞り径: 50 µm |
| 試料ホルダ | 凍結剤: NITROGEN |
| 撮影 | 電子線照射量: 50 e/Å2 / 検出モード: SUPER-RESOLUTION フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
| 画像スキャン | 動画フレーム数/画像: 40 |
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解析
| CTF補正 | タイプ: NONE |
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| 対称性 | 点対称性: C1 (非対称) |
| 3次元再構成 | 解像度: 3.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 48923 / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)
日本, 1件
引用
UCSF Chimera
















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