+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-30175 | |||||||||
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タイトル | Cryo-EM structure of pre-60S ribosome from Saccharomyces cerevisiae nog1delta595-647rei1341-393reh1delta380-430 strain at 3.77 Angstroms resolution(state N3) | |||||||||
マップデータ | Cryo-EM structure of pre-60S ribosome from Saccharomyces cerevisiae nog1%u2206C rei1%u2206C reh1%u2206C strain at 3.77 Angstroms resolution(state N3) | |||||||||
試料 |
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機能・相同性 | 機能・相同性情報 protein-RNA complex remodeling / regulation of ribosomal subunit export from nucleus / 7S RNA binding / positive regulation of ATP-dependent activity / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of 5.8S rRNA / hexon binding / pre-mRNA 5'-splice site binding / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / SRP-dependent cotranslational protein targeting to membrane ...protein-RNA complex remodeling / regulation of ribosomal subunit export from nucleus / 7S RNA binding / positive regulation of ATP-dependent activity / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of 5.8S rRNA / hexon binding / pre-mRNA 5'-splice site binding / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / ribosomal large subunit binding / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Formation of a pool of free 40S subunits / negative regulation of mRNA splicing, via spliceosome / preribosome, large subunit precursor / nuclear-transcribed mRNA catabolic process / ATPase activator activity / L13a-mediated translational silencing of Ceruloplasmin expression / translational elongation / ribosomal large subunit export from nucleus / regulation of translational fidelity / protein-RNA complex assembly / ribosomal subunit export from nucleus / 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 initiation factor activity / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / nuclear periphery / assembly of large subunit precursor of preribosome / ribosomal large subunit biogenesis / maturation of SSU-rRNA / cytosolic ribosome assembly / small-subunit processome / macroautophagy / maintenance of translational fidelity / rRNA processing / ribosome biogenesis / viral capsid / ATPase binding / 5S rRNA binding / large ribosomal subunit rRNA binding / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / GTPase activity / mRNA binding / host cell nucleus / GTP binding / nucleolus / RNA binding / nucleoplasm / nucleus / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Saccharomyces cerevisiae S288C (パン酵母) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.77 Å | |||||||||
データ登録者 | Li Y / Wilson DM | |||||||||
資金援助 | 中国, 2件
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引用 | ジャーナル: Nat Commun / 年: 2020 タイトル: Structural insights into assembly of the ribosomal nascent polypeptide exit tunnel. 著者: Daniel M Wilson / Yu Li / Amber LaPeruta / Michael Gamalinda / Ning Gao / John L Woolford / 要旨: The nascent polypeptide exit tunnel (NPET) is a major functional center of 60S ribosomal subunits. However, little is known about how the NPET is constructed during ribosome assembly. We utilized ...The nascent polypeptide exit tunnel (NPET) is a major functional center of 60S ribosomal subunits. However, little is known about how the NPET is constructed during ribosome assembly. We utilized molecular genetics, biochemistry, and cryo-electron microscopy (cryo-EM) to investigate the functions of two NPET-associated proteins, ribosomal protein uL4 and assembly factor Nog1, in NPET assembly. Structures of mutant pre-ribosomes lacking the tunnel domain of uL4 reveal a misassembled NPET, including an aberrantly flexible ribosomal RNA helix 74, resulting in at least three different blocks in 60S assembly. Structures of pre-ribosomes lacking the C-terminal extension of Nog1 demonstrate that this extension scaffolds the tunnel domain of uL4 in the NPET to help maintain stability in the core of pre-60S subunits. Our data reveal that uL4 and Nog1 work together in the maturation of ribosomal RNA helix 74, which is required to ensure proper construction of the NPET and 60S ribosomal subunits. | |||||||||
履歴 |
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-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 | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_30175.map.gz | 171.5 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-30175-v30.xml emd-30175.xml | 14.3 KB 14.3 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_30175.png | 59 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-30175 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-30175 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_30175_validation.pdf.gz | 78.9 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_30175_full_validation.pdf.gz | 78 KB | 表示 | |
XML形式データ | emd_30175_validation.xml.gz | 495 B | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-30175 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-30175 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_30175.map.gz / 形式: CCP4 / 大きさ: 209.3 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Cryo-EM structure of pre-60S ribosome from Saccharomyces cerevisiae nog1%u2206C rei1%u2206C reh1%u2206C strain at 3.77 Angstroms resolution(state N3) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.052 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : Eukaryotic pre-60S ribosomal subunits from Saccharomyces cerevisi...
全体 | 名称: Eukaryotic pre-60S ribosomal subunits from Saccharomyces cerevisiae nog1delta595-647rei1341-393reh1delta380-430 strain |
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要素 |
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-超分子 #1: Eukaryotic pre-60S ribosomal subunits from Saccharomyces cerevisi...
超分子 | 名称: Eukaryotic pre-60S ribosomal subunits from Saccharomyces cerevisiae nog1delta595-647rei1341-393reh1delta380-430 strain タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#47 |
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由来(天然) | 生物種: Saccharomyces cerevisiae S288C (パン酵母) |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.5 |
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凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 1.9 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: SPOT SCAN / 撮影モード: BRIGHT FIELD |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.77 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 23008 |
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初期 角度割当 | タイプ: ANGULAR RECONSTITUTION |
最終 角度割当 | タイプ: ANGULAR RECONSTITUTION |