+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6zv6 | ||||||
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タイトル | Human RIO1(kd)-StHA late pre-40S particle, structural state B (post 18S rRNA cleavage) | ||||||
要素 |
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キーワード | RIBOSOME / Human ribosome biogenesis / small ribosomal subunit / rRNA processing | ||||||
機能・相同性 | 機能・相同性情報 methyltransferase complex / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・物質の膜輸送を触媒する / positive regulation of rRNA processing / : / 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 ...methyltransferase complex / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・物質の膜輸送を触媒する / positive regulation of rRNA processing / : / 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 / NF-kappaB complex / neural crest cell differentiation / 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 / preribosome, small subunit precursor / 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 / positive regulation of mitochondrial depolarization / activation-induced cell death of T cells / positive regulation of T cell receptor signaling pathway / iron-sulfur cluster binding / fibroblast growth factor binding / negative regulation of Wnt signaling pathway / positive regulation of activated T cell proliferation / monocyte chemotaxis / Protein hydroxylation / negative regulation of peptidyl-serine phosphorylation / regulation of cell division / BH3 domain binding / SARS-CoV-1 modulates host translation machinery / mTORC1-mediated signalling / Peptide chain elongation / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / cysteine-type endopeptidase activator activity involved in apoptotic process / 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 / spindle assembly / regulation of translational fidelity / 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 / ribosomal small subunit export from nucleus / positive regulation of cell cycle / Nuclear events stimulated by ALK signaling in cancer / translation regulator activity / positive regulation of intrinsic apoptotic signaling pathway / 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) / EML4 and NUDC in mitotic spindle formation / antiviral innate immune response / positive regulation of JUN kinase activity / gastrulation 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) | ||||||
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: 2.9 Å | ||||||
データ登録者 | Plassart, L. / Shayan, R. / Plisson-Chastang, C. | ||||||
資金援助 | フランス, 1件
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引用 | ジャーナル: Elife / 年: 2021 タイトル: The final step of 40S ribosomal subunit maturation is controlled by a dual key lock. 著者: Laura Plassart / Ramtin Shayan / Christian Montellese / Dana Rinaldi / Natacha Larburu / Carole Pichereaux / Carine Froment / Simon Lebaron / Marie-Françoise O'Donohue / Ulrike Kutay / ...著者: Laura Plassart / Ramtin Shayan / Christian Montellese / Dana Rinaldi / Natacha Larburu / Carole Pichereaux / Carine Froment / Simon Lebaron / Marie-Françoise O'Donohue / Ulrike Kutay / Julien Marcoux / Pierre-Emmanuel Gleizes / Celia Plisson-Chastang / 要旨: Preventing premature interaction of pre-ribosomes with the translation apparatus is essential for translational accuracy. Hence, the final maturation step releasing functional 40S ribosomal subunits, ...Preventing premature interaction of pre-ribosomes with the translation apparatus is essential for translational accuracy. Hence, the final maturation step releasing functional 40S ribosomal subunits, namely processing of the 18S ribosomal RNA 3' end, is safeguarded by the protein DIM2, which both interacts with the endoribonuclease NOB1 and masks the rRNA cleavage site. To elucidate the control mechanism that unlocks NOB1 activity, we performed cryo-electron microscopy analysis of late human pre-40S particles purified using a catalytically inactive form of the ATPase RIO1. These structures, together with in vivo and in vitro functional analyses, support a model in which ATP-loaded RIO1 cooperates with ribosomal protein RPS26/eS26 to displace DIM2 from the 18S rRNA 3' end, thereby triggering final cleavage by NOB1; release of ADP then leads to RIO1 dissociation from the 40S subunit. This dual key lock mechanism requiring RIO1 and RPS26 guarantees the precise timing of pre-40S particle conversion into translation-competent 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 | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 6zv6.cif.gz | 1.7 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6zv6.ent.gz | 1.3 MB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 6zv6.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 | 6zv6_validation.pdf.gz | 1019.5 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 6zv6_full_validation.pdf.gz | 1.1 MB | 表示 | |
XML形式データ | 6zv6_validation.xml.gz | 142.8 KB | 表示 | |
CIF形式データ | 6zv6_validation.cif.gz | 245.1 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/zv/6zv6 ftp://data.pdbj.org/pub/pdb/validation_reports/zv/6zv6 | 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 , 1種, 1分子 2
#1: RNA鎖 | 分子量: 602805.875 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) |
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+40S ribosomal protein ... , 31種, 31分子 ABCDEFGHIJKLMNOPQRSaUVWXYZbcdeT
-タンパク質 , 3種, 3分子 fgh
#32: 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) Homo sapiens (ヒト) / 参照: UniProt: P62979 |
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#33: 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) Homo sapiens (ヒト) / 参照: UniProt: P63244 |
#35: タンパク質 | 分子量: 65772.070 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) 参照: UniProt: Q9BRS2, non-specific serine/threonine protein kinase, 加水分解酵素; 酸無水物に作用; 酸無水物に作用・物質の膜輸送を触媒する |
-非ポリマー , 4種, 8分子
#36: 化合物 | #37: 化合物 | ChemComp-ZN / | #38: 化合物 | ChemComp-ADP / | #39: 水 | ChemComp-HOH / | |
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-詳細
研究の焦点であるリガンドがあるか | N |
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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: human cytoplasmic late precursor to the small ribosomal subunit, purified using RIO1(kd)-StHA as bait. Structural state B (post 18S rRNA maturation) タイプ: RIBOSOME / Entity ID: #1-#35 / 由来: NATURAL |
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分子量 | 値: 1.4 MDa / 実験値: NO |
由来(天然) | 生物種: Homo sapiens (ヒト) / 株: HEK 293 |
緩衝液 | pH: 7.6 |
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 R2/1 |
急速凍結 | 装置: LEICA EM GP / 凍結剤: ETHANE / 湿度: 95 % / 凍結前の試料温度: 291 K |
-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 |
撮影 | 電子線照射量: 29.4 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 撮影したグリッド数: 1 / 実像数: 9494 |
画像スキャン | 動画フレーム数/画像: 28 |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.12_2829: / 分類: 精密化 | ||||||||||||||||||||||||||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 2126610 | ||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 276012 / アルゴリズム: EXACT BACK PROJECTION / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: RIGID BODY FIT | ||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 6EK0 6ek0 | ||||||||||||||||||||||||||||||||||||||||||||||||
拘束条件 |
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