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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: 9f58 | ||||||||||||||||||||||||||||||||||||
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| タイトル | Gcn2 dimer bound to the 60S ribosomal subunit | ||||||||||||||||||||||||||||||||||||
要素 |
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キーワード | RIBOSOME / LSU / 60S / Gcn2 | ||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報cellular response to histidine / regulation of cytoplasmic translational initiation in response to stress / positive regulation of translational initiation in response to starvation / GCN2-mediated signaling / eukaryotic translation initiation factor 2alpha kinase activity / negative regulation of translational initiation in response to stress / positive regulation of cellular response to amino acid starvation / regulation of translational initiation / pre-mRNA 5'-splice site binding / cytosolic large ribosomal subunit assembly ...cellular response to histidine / regulation of cytoplasmic translational initiation in response to stress / positive regulation of translational initiation in response to starvation / GCN2-mediated signaling / eukaryotic translation initiation factor 2alpha kinase activity / negative regulation of translational initiation in response to stress / positive regulation of cellular response to amino acid starvation / regulation of translational initiation / pre-mRNA 5'-splice site binding / cytosolic large ribosomal subunit assembly / response to cycloheximide / 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 / negative regulation of mRNA splicing, via spliceosome / preribosome, large subunit precursor / protein kinase inhibitor activity / Formation of a pool of free 40S subunits / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / L13a-mediated translational silencing of Ceruloplasmin expression / translational elongation / ribosomal large subunit export from nucleus / regulation of translational fidelity / translational termination / protein-RNA complex assembly / maturation of LSU-rRNA / translation initiation factor binding / cytosolic ribosome / DNA damage checkpoint signaling / cellular response to amino acid starvation / ribosomal large subunit biogenesis / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / macroautophagy / translational initiation / maintenance of translational fidelity / modification-dependent protein catabolic process / protein tag activity / rRNA processing / protein autophosphorylation / double-stranded RNA binding / large ribosomal subunit / ribosome biogenesis / ribosome binding / 5S rRNA binding / small ribosomal subunit / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / protein phosphorylation / cytoplasmic translation / protein kinase activity / tRNA binding / non-specific serine/threonine protein kinase / negative regulation of translation / intracellular signal transduction / rRNA binding / structural constituent of ribosome / protein ubiquitination / ribosome / translation / protein serine kinase activity / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / nucleolus / protein homodimerization activity / RNA binding / zinc ion binding / ATP binding / nucleus / cytoplasm / cytosol 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: 3.1 Å | ||||||||||||||||||||||||||||||||||||
データ登録者 | Paternoga, H. / Dimitrova-Paternoga, L. / Wilson, D.N. | ||||||||||||||||||||||||||||||||||||
| 資金援助 | ドイツ, 1件
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引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2025タイトル: Structure of a Gcn2 dimer in complex with the large 60S ribosomal subunit. 著者: Helge Paternoga / Lu Xia / Lyudmila Dimitrova-Paternoga / Sihan Li / Liewei L Yan / Malte Oestereich / Sergo Kasvandik / Ankanahalli N Nanjaraj Urs / Bertrand Beckert / Tanel Tenson / Hani ...著者: Helge Paternoga / Lu Xia / Lyudmila Dimitrova-Paternoga / Sihan Li / Liewei L Yan / Malte Oestereich / Sergo Kasvandik / Ankanahalli N Nanjaraj Urs / Bertrand Beckert / Tanel Tenson / Hani Zaher / Toshifumi Inada / Daniel N Wilson / ![]() 要旨: The integrated stress response (ISR) is a central signaling network that enables eukaryotic cells to respond to a variety of different environmental stresses. Such stresses cause ribosome collisions ...The integrated stress response (ISR) is a central signaling network that enables eukaryotic cells to respond to a variety of different environmental stresses. Such stresses cause ribosome collisions that lead to activation of the kinase Gcn2, resulting in the phosphorylation and inactivation of eukaryotic initiation factor 2 and thereby promoting selective translation of mRNAs to restore homeostasis. Despite the importance of the ISR and intensive study over the past decades, structural insight into how Gcn2 interacts with ribosomal particles has been lacking. Using ex vivo affinity purification approaches, we have obtained a cryoelectron microscopy structure of a yeast Gcn2 dimer in complex with the ribosomal 60S subunit. The Gcn2 dimer is formed by dimerization of the histidine tRNA synthetase-like domains, which establish extensive interactions with the stalk-base and sarcin-ricin loop of the 60S subunit. The C-terminal domain of Gcn2 is also dimerized and occupies the A- and P-site tRNA binding sites at the peptidyl-transferase center of the 60S subunit. Complementary functional studies indicate that binding of Gcn2 to the 60S subunit does not require the coactivators Gcn1 or Gcn20, nor does it lead to phosphorylation of eIF2α. Instead, upon stress, we observe a shift of Gcn2 from the 60S subunit into the colliding ribosome fraction, suggesting that the Gcn2-60S complex represents an inactive stand-by state to enable a rapid redistribution to collided ribosomes, and thereby facilitating a quick and efficient response to stress. | ||||||||||||||||||||||||||||||||||||
| 履歴 |
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構造の表示
| 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 | 9f58.cif.gz | 3.6 MB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9f58.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 9f58.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/f5/9f58 ftp://data.pdbj.org/pub/pdb/validation_reports/f5/9f58 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 50188MC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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リンク
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集合体
| 登録構造単位 | ![]()
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| 非結晶学的対称性 (NCS) | NCSドメイン:
NCSドメイン領域:
NCSアンサンブル:
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要素
-タンパク質 , 2種, 7分子 AHICDEY
| #1: タンパク質 | 分子量: 190429.406 Da / 分子数: 6 / 由来タイプ: 天然 / 由来: (天然) ![]() 参照: UniProt: P15442, non-specific serine/threonine protein kinase #39: タンパク質 | | 分子量: 14583.077 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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-RNA鎖 , 3種, 3分子 4ba
| #3: RNA鎖 | 分子量: 50682.922 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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| #4: RNA鎖 | 分子量: 38951.105 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
| #45: RNA鎖 | 分子量: 1097493.875 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
+60S ribosomal protein ... , 39種, 39分子 defghijkmnopqrstuvwyzJKLMNOQRT...
-タンパク質・ペプチド / 非ポリマー , 2種, 6分子 P

| #2: タンパク質・ペプチド | 分子量: 3354.243 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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| #46: 化合物 | ChemComp-ZN / |
-詳細
| 研究の焦点であるリガンドがあるか | N |
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| Has protein modification | N |
-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: 60S ribosomal subunit with bound Gcn2 dimer / タイプ: RIBOSOME / Entity ID: #1-#45 / 由来: NATURAL |
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| 分子量 | 実験値: NO |
| 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 R3/3 |
| 急速凍結 | 凍結剤: ETHANE-PROPANE / 湿度: 100 % |
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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 |
| 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 / 最大 デフォーカス(公称値): 900 nm / 最小 デフォーカス(公称値): 400 nm |
| 撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 14552 / 対称性のタイプ: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 精密化 | 解像度: 3.1→265.74 Å / Cor.coef. Fo:Fc: 0.834 / WRfactor Rwork: 0.285 / SU B: 16.961 / SU ML: 0.278 / Average fsc free: 0 / Average fsc overall: 0.8687 / Average fsc work: 0.8687 / ESU R: 0.43 / 詳細: Hydrogens have been added in their riding positions
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| 溶媒の処理 | 溶媒モデル: NONE | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 原子変位パラメータ | Biso mean: 115.471 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 拘束条件 |
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万見について






ドイツ, 1件
引用


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FIELD EMISSION GUN