+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 5flx | ||||||
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タイトル | Mammalian 40S HCV-IRES complex | ||||||
要素 |
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キーワード | RIBOSOME / TRANSLATION INITIATION / HEPATITIS C VIRUS INTERNAL RIBOSOME ENTRY SITE | ||||||
機能・相同性 | 機能・相同性情報 : / negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / protein tyrosine kinase inhibitor activity / 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 / nucleolus organization ...: / negative regulation of endoplasmic reticulum unfolded protein response / oxidized pyrimidine DNA binding / response to TNF agonist / positive regulation of base-excision repair / protein tyrosine kinase inhibitor activity / 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 / nucleolus organization / regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / IRE1-RACK1-PP2A complex / positive regulation of endodeoxyribonuclease activity / positive regulation of Golgi to plasma membrane protein transport / TNFR1-mediated ceramide production / negative regulation of RNA splicing / negative regulation of DNA repair / negative regulation of intrinsic apoptotic signaling pathway in response to hydrogen peroxide / supercoiled DNA binding / oxidized purine DNA binding / neural crest cell differentiation / NF-kappaB complex / ubiquitin-like protein conjugating enzyme binding / regulation of establishment of cell polarity / positive regulation of ubiquitin-protein transferase activity / negative regulation of phagocytosis / rRNA modification in the nucleus and cytosol / erythrocyte homeostasis / Formation of the ternary complex, and subsequently, the 43S complex / cytoplasmic side of rough endoplasmic reticulum membrane / laminin receptor activity / pigmentation / protein kinase A binding / negative regulation of ubiquitin protein ligase activity / Ribosomal scanning and start codon recognition / ion channel inhibitor activity / Translation initiation complex formation / mammalian oogenesis stage / fibroblast growth factor binding / positive regulation of mitochondrial depolarization / activation-induced cell death of T cells / positive regulation of T cell receptor signaling pathway / negative regulation of peptidyl-serine phosphorylation / iron-sulfur cluster binding / negative regulation of Wnt signaling pathway / positive regulation of activated T cell proliferation / monocyte chemotaxis / Protein hydroxylation / regulation of cell division / BH3 domain binding / cysteine-type endopeptidase activator activity involved in apoptotic process / mTORC1-mediated signalling / SARS-CoV-1 modulates host translation machinery / Peptide chain elongation / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Selenocysteine synthesis / positive regulation of signal transduction by p53 class mediator / Formation of a pool of free 40S subunits / ubiquitin ligase inhibitor activity / Eukaryotic Translation Termination / phagocytic cup / negative regulation of respiratory burst involved in inflammatory response / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / Viral mRNA Translation / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / TOR signaling / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / T cell proliferation involved in immune response / regulation of translational fidelity / spindle assembly / positive regulation of cell cycle / Major pathway of rRNA processing in the nucleolus and cytosol / erythrocyte development / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / negative regulation of ubiquitin-dependent protein catabolic process / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Protein methylation / positive regulation of intrinsic apoptotic signaling pathway / ribosomal small subunit export from nucleus / Nuclear events stimulated by ALK signaling in cancer / translation regulator activity / signaling adaptor activity / laminin binding / negative regulation of smoothened signaling pathway / stress granule assembly / Mitotic Prometaphase / rough endoplasmic reticulum / 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) / antiviral innate immune response / positive regulation of JUN kinase activity / EML4 and NUDC in mitotic spindle formation / gastrulation / MDM2/MDM4 family protein binding / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) 類似検索 - 分子機能 | ||||||
生物種 | HEPATITIS C VIRUS (ウイルス) ORYCTOLAGUS CUNICULUS (ウサギ) | ||||||
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 | Yamamoto, H. / Collier, M. / Loerke, J. / Ismer, J. / Schmidt, A. / Hilal, T. / Sprink, T. / Yamamoto, K. / Mielke, T. / Burger, J. ...Yamamoto, H. / Collier, M. / Loerke, J. / Ismer, J. / Schmidt, A. / Hilal, T. / Sprink, T. / Yamamoto, K. / Mielke, T. / Burger, J. / Shaikh, T.R. / Dabrowski, M. / Hildebrand, P.W. / Scheerer, P. / Spahn, C.M.T. | ||||||
引用 | ジャーナル: EMBO J / 年: 2015 タイトル: Molecular architecture of the ribosome-bound Hepatitis C Virus internal ribosomal entry site RNA. 著者: Hiroshi Yamamoto / Marianne Collier / Justus Loerke / Jochen Ismer / Andrea Schmidt / Tarek Hilal / Thiemo Sprink / Kaori Yamamoto / Thorsten Mielke / Jörg Bürger / Tanvir R Shaikh / ...著者: Hiroshi Yamamoto / Marianne Collier / Justus Loerke / Jochen Ismer / Andrea Schmidt / Tarek Hilal / Thiemo Sprink / Kaori Yamamoto / Thorsten Mielke / Jörg Bürger / Tanvir R Shaikh / Marylena Dabrowski / Peter W Hildebrand / Patrick Scheerer / Christian M T Spahn / 要旨: Internal ribosomal entry sites (IRESs) are structured cis-acting RNAs that drive an alternative, cap-independent translation initiation pathway. They are used by many viruses to hijack the ...Internal ribosomal entry sites (IRESs) are structured cis-acting RNAs that drive an alternative, cap-independent translation initiation pathway. They are used by many viruses to hijack the translational machinery of the host cell. IRESs facilitate translation initiation by recruiting and actively manipulating the eukaryotic ribosome using only a subset of canonical initiation factor and IRES transacting factors. Here we present cryo-EM reconstructions of the ribosome 80S- and 40S-bound Hepatitis C Virus (HCV) IRES. The presence of four subpopulations for the 80S•HCV IRES complex reveals dynamic conformational modes of the complex. At a global resolution of 3.9 Å for the most stable complex, a derived atomic model reveals a complex fold of the IRES RNA and molecular details of its interaction with the ribosome. The comparison of obtained structures explains how a modular architecture facilitates mRNA loading and tRNA binding to the P-site. This information provides the structural foundation for understanding the mechanism of HCV IRES RNA-driven translation initiation. | ||||||
履歴 |
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Remark 700 | SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "LA" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "LA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 5-STRANDED BARREL THIS IS REPRESENTED BY A 6-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. THE SHEETS PRESENTED AS "XA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 5-STRANDED BARREL THIS IS REPRESENTED BY A 6-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. |
-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 5flx.cif.gz | 1.7 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb5flx.ent.gz | 1.4 MB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 5flx.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
文書・要旨 | 5flx_validation.pdf.gz | 1.1 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 5flx_full_validation.pdf.gz | 1.1 MB | 表示 | |
XML形式データ | 5flx_validation.xml.gz | 143.1 KB | 表示 | |
CIF形式データ | 5flx_validation.cif.gz | 238.9 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/fl/5flx ftp://data.pdbj.org/pub/pdb/validation_reports/fl/5flx | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-RNA鎖 , 2種, 2分子 1z
#1: RNA鎖 | 分子量: 602776.875 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ORYCTOLAGUS CUNICULUS (ウサギ) / 参照: GenBank: 36162 |
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#35: RNA鎖 | 分子量: 162190.062 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) HEPATITIS C VIRUS (ウイルス) / 発現宿主: ORYCTOLAGUS CUNICULUS (ウサギ) |
+40S RIBOSOMAL PROTEIN ... , 31種, 31分子 ABCDEFGHIJKLMNOPQRSTUVWXYZabcde
-タンパク質 , 2種, 2分子 fg
#33: 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) ORYCTOLAGUS CUNICULUS (ウサギ) / 参照: UniProt: P62979 |
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#34: 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) ORYCTOLAGUS CUNICULUS (ウサギ) / 参照: UniProt: P63244 |
-非ポリマー , 2種, 76分子
#36: 化合物 | ChemComp-MG / #37: 化合物 | |
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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 |
-試料調製
構成要素 | 名称: MAMMALIAN 80S HCV-IRES COMPLEX, CLASSICAL / タイプ: RIBOSOME |
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緩衝液 | 名称: 20MM TRIS-HCL, 7.5MM MGCL2, 100MM KCL, 0.2MM SPERMIDINE, 2MM DTT pH: 7.6 詳細: 20MM TRIS-HCL, 7.5MM MGCL2, 100MM KCL, 0.2MM SPERMIDINE, 2MM DTT |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | 詳細: HOLEY CARBON |
急速凍結 | 装置: FEI VITROBOT MARK I / 凍結剤: ETHANE 詳細: VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 100, TEMPERATURE- 93, INSTRUMENT- FEI VITROBOT MARK I, METHOD- BLOT FOR 2-4 SECONDS BEFORE PLUNGING, |
-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 / 日付: 2014年10月16日 |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 75000 X / 倍率(補正後): 130293 X / 最大 デフォーカス(公称値): 4500 nm / 最小 デフォーカス(公称値): 2000 nm / Cs: 2.7 mm |
撮影 | 電子線照射量: 20 e/Å2 フィルム・検出器のモデル: FEI FALCON II (4k x 4k) |
-解析
EMソフトウェア |
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CTF補正 | 詳細: CTFFIND3 | ||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||
3次元再構成 | 解像度: 3.9 Å / 粒子像の数: 171820 / ピクセルサイズ(公称値): 1.07 Å / ピクセルサイズ(実測値): 1.07 Å 詳細: SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3221. (DEPOSITION ID: 13955). 対称性のタイプ: POINT | ||||||||||||
原子モデル構築 | 空間: REAL | ||||||||||||
精密化 | 最高解像度: 3.9 Å | ||||||||||||
精密化ステップ | サイクル: LAST / 最高解像度: 3.9 Å
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