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基本情報
| 登録情報 | データベース: EMDB / ID: EMD-4349 | |||||||||||||||
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| タイトル | Cryo-EM structure of a late human pre-40S ribosomal subunit - State A | |||||||||||||||
マップデータ | ||||||||||||||||
試料 |
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キーワード | 40S / pre-40S / ribosome biogenesis / RIBOSOME | |||||||||||||||
| 機能・相同性 | 機能・相同性情報tRNA (m2G10) methyltransferase complex / tRNA methyltransferase activator activity / peptidyl-glutamine methylation / regulation of protein localization to nucleolus / rRNA (guanine-N7)-methylation / rRNA (guanine) methyltransferase activity / tRNA wobble uridine modification / tRNA modification in the nucleus and cytosol / RNA methylation / Methylation ...tRNA (m2G10) methyltransferase complex / tRNA methyltransferase activator activity / peptidyl-glutamine methylation / regulation of protein localization to nucleolus / rRNA (guanine-N7)-methylation / rRNA (guanine) methyltransferase activity / tRNA wobble uridine modification / tRNA modification in the nucleus and cytosol / RNA methylation / Methylation / protein methyltransferase activity / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / tRNA methylation / positive regulation of rRNA processing / rRNA methylation / positive regulation of respiratory burst involved in inflammatory response / nucleolus organization / negative regulation of RNA splicing / erythrocyte homeostasis / snoRNA binding / preribosome, small subunit precursor / rRNA modification in the nucleus and cytosol / negative regulation of bicellular tight junction assembly / cytoplasmic side of rough endoplasmic reticulum membrane / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / PELO:HBS1L and ABCE1 dissociate a ribosome on a non-stop mRNA / Translation initiation complex formation / fibroblast growth factor binding / ZNF598 and the Ribosome-associated Quality Trigger (RQT) complex dissociate a ribosome stalled on a no-go mRNA / Protein hydroxylation / TOR signaling / monocyte chemotaxis / mTORC1-mediated signalling / SARS-CoV-1 modulates host translation machinery / Peptide chain elongation / cellular response to ethanol / Selenocysteine synthesis / Formation of a pool of free 40S subunits / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Eukaryotic Translation Termination / negative regulation of respiratory burst involved in inflammatory response / SRP-dependent cotranslational protein targeting to membrane / Response of EIF2AK4 (GCN2) to amino acid deficiency / negative regulation of ubiquitin-dependent protein catabolic process / ubiquitin ligase inhibitor activity / Viral mRNA Translation / 90S preribosome / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / positive regulation of signal transduction by p53 class mediator / 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 / regulation of translational fidelity / maturation of LSU-rRNA / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Nuclear events stimulated by ALK signaling in cancer / rough endoplasmic reticulum / ribosomal small subunit export from nucleus / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / positive regulation of cell cycle / MDM2/MDM4 family protein binding / liver regeneration / Mitotic Prometaphase / translation initiation factor binding / EML4 and NUDC in mitotic spindle formation / 転移酵素; 一炭素原子の基を移すもの; メチル基を移すもの / erythrocyte differentiation / transcription initiation-coupled chromatin remodeling / Resolution of Sister Chromatid Cohesion / stress granule assembly / methyltransferase activity / positive regulation of translation / cytosolic ribosome / maturation of SSU-rRNA / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / mRNA 3'-UTR binding / small-subunit processome / translational initiation / response to insulin / RHO GTPases Activate Formins / response to virus / maintenance of translational fidelity / modification-dependent protein catabolic process / GABA-ergic synapse / mRNA 5'-UTR binding / osteoblast differentiation / innate immune response in mucosa / apical part of cell / Regulation of expression of SLITs and ROBOs / cytoplasmic ribonucleoprotein granule / protein tag activity / glucose homeostasis / rRNA processing / Separation of Sister Chromatids / chromosome / presynapse / ribosomal small subunit assembly / ribosomal small subunit biogenesis / ribosome biogenesis 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: 4.5 Å | |||||||||||||||
データ登録者 | Ameismeier M / Cheng J | |||||||||||||||
| 資金援助 | ドイツ, 4件
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引用 | ジャーナル: Nature / 年: 2018タイトル: Visualizing late states of human 40S ribosomal subunit maturation. 著者: Michael Ameismeier / Jingdong Cheng / Otto Berninghausen / Roland Beckmann / ![]() 要旨: The formation of eukaryotic ribosomal subunits extends from the nucleolus to the cytoplasm and entails hundreds of assembly factors. Despite differences in the pathways of ribosome formation, high- ...The formation of eukaryotic ribosomal subunits extends from the nucleolus to the cytoplasm and entails hundreds of assembly factors. Despite differences in the pathways of ribosome formation, high-resolution structural information has been available only from fungi. Here we present cryo-electron microscopy structures of late-stage human 40S assembly intermediates, representing one state reconstituted in vitro and five native states that range from nuclear to late cytoplasmic. The earliest particles reveal the position of the biogenesis factor RRP12 and distinct immature rRNA conformations that accompany the formation of the 40S subunit head. Molecular models of the late-acting assembly factors TSR1, RIOK1, RIOK2, ENP1, LTV1, PNO1 and NOB1 provide mechanistic details that underlie their contribution to a sequential 40S subunit assembly. The NOB1 architecture displays an inactive nuclease conformation that requires rearrangement of the PNO1-bound 3' rRNA, thereby coordinating the final rRNA folding steps with site 3 cleavage. | |||||||||||||||
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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: SurfView Molmil Jmol/JSmol |
| 添付画像 |
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_4349.map.gz | 15.9 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-4349-v30.xml emd-4349.xml | 45 KB 45 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_4349_fsc.xml | 12.9 KB | 表示 | FSCデータファイル |
| 画像 | emd_4349.png | 144.7 KB | ||
| Filedesc metadata | emd-4349.cif.gz | 10.3 KB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-4349 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-4349 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 6g4wMC ![]() 4337C ![]() 4348C ![]() 4350C ![]() 4351C ![]() 4352C ![]() 4353C ![]() 6g18C ![]() 6g4sC ![]() 6g51C ![]() 6g53C ![]() 6g5hC ![]() 6g5iC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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| 類似構造データ |
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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 |
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マップ
| ファイル | ダウンロード / ファイル: emd_4349.map.gz / 形式: CCP4 / 大きさ: 178 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: 1.084 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
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試料の構成要素
+全体 : Cryo-EM structure of a late human pre-40S ribosomal subunit - State A
+超分子 #1: Cryo-EM structure of a late human pre-40S ribosomal subunit - State A
+分子 #1: 18S ribosomal RNA
+分子 #2: 40S ribosomal protein S17
+分子 #3: 40S ribosomal protein S27
+分子 #4: 40S ribosomal protein S3a
+分子 #5: 40S ribosomal protein S28
+分子 #6: 40S ribosomal protein S4, X isoform
+分子 #7: 40S ribosomal protein S30
+分子 #8: 40S ribosomal protein S5
+分子 #9: 40S ribosomal protein S7
+分子 #10: 40S ribosomal protein S6
+分子 #11: 40S ribosomal protein S25
+分子 #12: 40S ribosomal protein S24
+分子 #13: RNA-binding protein PNO1
+分子 #14: 40S ribosomal protein S23
+分子 #15: Bystin
+分子 #16: 40S ribosomal protein S15a
+分子 #17: Pre-rRNA-processing protein TSR1 homolog
+分子 #18: UNKNOWN
+分子 #19: 40S ribosomal protein S19
+分子 #20: 40S ribosomal protein S18
+分子 #21: 40S ribosomal protein S16
+分子 #22: 40S ribosomal protein S15
+分子 #23: 40S ribosomal protein S14
+分子 #24: 40S ribosomal protein S13
+分子 #25: 40S ribosomal protein S11
+分子 #26: 40S ribosomal protein S9
+分子 #27: 40S ribosomal protein S8
+分子 #28: RRP12
+分子 #29: Multifunctional methyltransferase subunit TRM112-like protein
+分子 #30: Probable 18S rRNA (guanine-N(7))-methyltransferase
+分子 #31: UNKNOWN HELIX
-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 |
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試料調製
| 緩衝液 | pH: 7.6 |
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| 凍結 | 凍結剤: ETHANE |
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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: FEI FALCON II (4k x 4k) 平均電子線量: 2.5 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 |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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コントローラー
万見について



キーワード
Homo sapiens (ヒト)
データ登録者
ドイツ, 4件
引用
UCSF Chimera



































Z (Sec.)
Y (Row.)
X (Col.)





















解析

