+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-10344 | |||||||||
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タイトル | Cryo-EM structure of the human Ebp1-ribosome complex | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | Human Ebp1 / PA2G4 family / MET-AP homolog / expansion segment ES27L / RIBOSOME | |||||||||
機能・相同性 | 機能・相同性情報 eukaryotic 80S initiation complex / axial mesoderm development / 90S preribosome assembly / TORC2 complex binding / middle ear morphogenesis / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / regulation of translation involved in cellular response to UV / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / Peptide chain elongation / Selenocysteine synthesis ...eukaryotic 80S initiation complex / axial mesoderm development / 90S preribosome assembly / TORC2 complex binding / middle ear morphogenesis / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / regulation of translation involved in cellular response to UV / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / Eukaryotic Translation Termination / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / Viral mRNA Translation / 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 / Major pathway of rRNA processing in the nucleolus and cytosol / protein-RNA complex assembly / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / cytosolic ribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ossification / ribosomal large subunit biogenesis / skeletal system development / positive regulation of translation / positive regulation of cell differentiation / sensory perception of sound / cellular response to gamma radiation / mRNA 5'-UTR binding / Regulation of expression of SLITs and ROBOs / transcription corepressor activity / cellular response to UV / rRNA processing / azurophil granule lumen / regulation of translation / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / nucleic acid binding / postsynaptic density / rRNA binding / structural constituent of ribosome / cadherin binding / ribonucleoprotein complex / translation / focal adhesion / negative regulation of DNA-templated transcription / mRNA binding / ubiquitin protein ligase binding / Neutrophil degranulation / synapse / negative regulation of apoptotic process / nucleolus / RNA binding / extracellular exosome / extracellular region / nucleoplasm / membrane / nucleus / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.3 Å | |||||||||
データ登録者 | Wild K / Aleksic M | |||||||||
資金援助 | ドイツ, 1件
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引用 | ジャーナル: Nat Commun / 年: 2020 タイトル: MetAP-like Ebp1 occupies the human ribosomal tunnel exit and recruits flexible rRNA expansion segments. 著者: Klemens Wild / Milan Aleksić / Karine Lapouge / Keven D Juaire / Dirk Flemming / Stefan Pfeffer / Irmgard Sinning / 要旨: Human Ebp1 is a member of the proliferation-associated 2G4 (PA2G4) family and plays an important role in cancer regulation. Ebp1 shares the methionine aminopeptidase (MetAP) fold and binds to mature ...Human Ebp1 is a member of the proliferation-associated 2G4 (PA2G4) family and plays an important role in cancer regulation. Ebp1 shares the methionine aminopeptidase (MetAP) fold and binds to mature 80S ribosomes for translational control. Here, we present a cryo-EM single particle analysis reconstruction of Ebp1 bound to non-translating human 80S ribosomes at a resolution range from 3.3 to ~8 Å. Ebp1 blocks the tunnel exit with major interactions to the general uL23/uL29 docking site for nascent chain-associated factors complemented by eukaryote-specific eL19 and rRNA helix H59. H59 is defined as dynamic adaptor undergoing significant remodeling upon Ebp1 binding. Ebp1 recruits rRNA expansion segment ES27L to the tunnel exit via specific interactions with rRNA consensus sequences. The Ebp1-ribosome complex serves as a template for MetAP binding and provides insights into the structural principles for spatial coordination of co-translational events and molecular triage at the ribosomal tunnel exit. | |||||||||
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_10344.map.gz | 50.6 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-10344-v30.xml emd-10344.xml | 25.6 KB 25.6 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_10344.png | 244.3 KB | ||
Filedesc metadata | emd-10344.cif.gz | 8.8 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-10344 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-10344 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_10344_validation.pdf.gz | 424.9 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_10344_full_validation.pdf.gz | 424.4 KB | 表示 | |
XML形式データ | emd_10344_validation.xml.gz | 7.9 KB | 表示 | |
CIF形式データ | emd_10344_validation.cif.gz | 9.1 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10344 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10344 | 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_10344.map.gz / 形式: CCP4 / 大きさ: 512 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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: 1.07 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 : Human Ebp1-ribosome complex
+超分子 #1: Human Ebp1-ribosome complex
+超分子 #2: Proliferation-associated protein 2G4
+超分子 #3: ribosomal components
+分子 #1: Proliferation-associated protein 2G4
+分子 #2: 60S ribosomal protein L35
+分子 #3: 60S ribosomal protein L38
+分子 #4: 60S ribosomal protein L19
+分子 #5: 60S ribosomal protein L23a
+分子 #6: 60S ribosomal protein L26
+分子 #7: 28S ribosomal RNA including ES27L-B (2839-3265)
+分子 #8: 5.8S ribosomal RNA
-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 / 構成要素 - 式: MgOAc2 / 構成要素 - 名称: KOAc |
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凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 293 K / 装置: FEI VITROBOT MARK IV |
詳細 | 100 nM ribosome, 800 nM Ebp1 |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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特殊光学系 | エネルギーフィルター - 名称: GIF Bioquantum / エネルギーフィルター - スリット幅: 20 eV |
撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 実像数: 3370 / 平均電子線量: 38.0 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: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 3.0 µm / 最小 デフォーカス(公称値): 0.5 µm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |