+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 6ip6 | ||||||
---|---|---|---|---|---|---|---|
タイトル | Cryo-EM structure of the CMV-stalled human 80S ribosome with HCV IRES (Structure iii) | ||||||
![]() |
| ||||||
![]() | RIBOSOME / Translation | ||||||
機能・相同性 | ![]() translation at presynapse / exit from mitosis / male meiosis I / eukaryotic 80S initiation complex / negative regulation of protein neddylation / optic nerve development / response to insecticide / regulation of translation involved in cellular response to UV / negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding ...translation at presynapse / exit from mitosis / male meiosis I / eukaryotic 80S initiation complex / negative regulation of protein neddylation / optic nerve development / response to insecticide / regulation of translation involved in cellular response to UV / negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / axial mesoderm development / negative regulation of formation of translation preinitiation complex / regulation of G1 to G0 transition / 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 / positive regulation of gastrulation / 90S preribosome assembly / protein tyrosine kinase inhibitor activity / protein-DNA complex disassembly / IRE1-RACK1-PP2A complex / positive regulation of endodeoxyribonuclease activity / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / nucleolus organization / positive regulation of Golgi to plasma membrane protein transport / retinal ganglion cell axon guidance / TNFR1-mediated ceramide production / negative regulation of DNA repair / negative regulation of RNA splicing / GAIT complex / positive regulation of DNA damage response, signal transduction by p53 class mediator / 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 / G1 to G0 transition / NF-kappaB complex / positive regulation of ubiquitin-protein transferase activity / 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 / ubiquitin-like protein conjugating enzyme binding / negative regulation of bicellular tight junction assembly / regulation of establishment of cell polarity / 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 / protein kinase A binding / ion channel inhibitor activity / pigmentation / Ribosomal scanning and start codon recognition / homeostatic process / Translation initiation complex formation / positive regulation of mitochondrial depolarization / positive regulation of T cell receptor signaling pathway / macrophage chemotaxis / fibroblast growth factor binding / negative regulation of Wnt signaling pathway / lung morphogenesis / monocyte chemotaxis / positive regulation of natural killer cell proliferation / positive regulation of activated T cell proliferation / negative regulation of translational frameshifting / Protein hydroxylation / TOR signaling / BH3 domain binding / SARS-CoV-1 modulates host translation machinery / regulation of cell division / cellular response to ethanol / mTORC1-mediated signalling / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / 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 / positive regulation of GTPase activity / cellular response to actinomycin D / 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 / protein serine/threonine kinase inhibitor activity / Viral mRNA Translation / negative regulation of respiratory burst involved in inflammatory response / Maturation of protein E / Maturation of protein E / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / protein localization to nucleus 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: 4.5 Å | ||||||
![]() | Yokoyama, T. / Shigematsu, H. / Shirouzu, M. / Imataka, H. / Ito, T. | ||||||
資金援助 | ![]()
| ||||||
![]() | ![]() 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. | ||||||
履歴 |
|
-
構造の表示
ムービー |
![]() |
---|---|
構造ビューア | 分子: ![]() ![]() |
-
ダウンロードとリンク
-
ダウンロード
PDBx/mmCIF形式 | ![]() | 4.8 MB | 表示 | ![]() |
---|---|---|---|---|
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 | ![]() | 1.9 MB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 2.1 MB | 表示 | |
XML形式データ | ![]() | 367 KB | 表示 | |
CIF形式データ | ![]() | 624.9 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
-
リンク
-
集合体
登録構造単位 | ![]()
|
---|---|
1 |
|
-
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) ![]() |
---|---|
#2: RNA鎖 | 分子量: 38998.078 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#3: RNA鎖 | 分子量: 50449.812 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#46: RNA鎖 | 分子量: 602752.875 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#80: RNA鎖 | 分子量: 1827.141 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#82: RNA鎖 | 分子量: 24189.314 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
#83: RNA鎖 | 分子量: 93491.078 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
+60S ribosomal protein ... , 41種, 41分子 1D1E1F1G1H2A2B2C2D2E2F2G2H2I2J2K2L2M2N2O2P2Q2R2S2T2U2V2W2X2Y...
-タンパク質 , 3種, 3分子 2g3F3R
#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) ![]() |
---|---|
#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) ![]() |
#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) ![]() |
+40S ribosomal protein ... , 31種, 31分子 2n2o2p2q2r2s2t2u2v2w2x2y2z20213A3B3C3D3E3G3H3I3J3K3L3M3N3O3P3Q
-タンパク質・ペプチド , 1種, 1分子 zx
#81: 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) ![]() |
---|
-詳細
Has protein modification | Y |
---|
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
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: Human 80S ribosome / タイプ: RIBOSOME / Entity ID: all / 由来: NATURAL |
---|---|
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 |
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 |
-
電子顕微鏡撮影
実験機器 | ![]() モデル: Talos Arctica / 画像提供: FEI Company |
---|---|
顕微鏡 | モデル: FEI TECNAI ARCTICA |
電子銃 | 電子線源: ![]() |
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 |
-
解析
CTF補正 | タイプ: NONE |
---|---|
対称性 | 点対称性: C1 (非対称) |
3次元再構成 | 解像度: 4.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 21303 / 対称性のタイプ: POINT |