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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Cryo-EM structure of a human pre-40S ribosomal subunit - State RRP12-B2 | |||||||||
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![]() | ribosome biogenesis / 40S ribosome / RIBOSOME | |||||||||
機能・相同性 | ![]() regulation of protein localization to nucleolus / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / trophectodermal cell differentiation / positive regulation of respiratory burst involved in inflammatory response / nucleolus organization / negative regulation of RNA splicing / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / neural crest cell differentiation / positive regulation of ubiquitin-protein transferase activity / U3 snoRNA binding ...regulation of protein localization to nucleolus / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / trophectodermal cell differentiation / positive regulation of respiratory burst involved in inflammatory response / nucleolus organization / negative regulation of RNA splicing / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / neural crest cell differentiation / positive regulation of ubiquitin-protein transferase activity / U3 snoRNA binding / negative regulation of bicellular tight junction assembly / rRNA modification in the nucleus and cytosol / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / snoRNA binding / preribosome, small subunit precursor / laminin receptor activity / negative regulation of ubiquitin protein ligase activity / Ribosomal scanning and start codon recognition / Translation initiation complex formation / fibroblast growth factor binding / monocyte chemotaxis / Protein hydroxylation / TOR signaling / SARS-CoV-1 modulates host translation machinery / mTORC1-mediated signalling / cellular response to ethanol / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Eukaryotic Translation Termination / ubiquitin ligase inhibitor activity / Response of EIF2AK4 (GCN2) to amino acid deficiency / positive regulation of signal transduction by p53 class mediator / SRP-dependent cotranslational protein targeting to membrane / negative regulation of ubiquitin-dependent protein catabolic process / Viral mRNA Translation / negative regulation of respiratory burst involved in inflammatory response / Maturation of protein E / Maturation of protein E / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / GTP hydrolysis and joining of the 60S ribosomal subunit / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / L13a-mediated translational silencing of Ceruloplasmin expression / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Negative regulation of FLT3 / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / Constitutive Signaling by NOTCH1 HD Domain Mutants / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / NOTCH2 Activation and Transmission of Signal to the Nucleus / Major pathway of rRNA processing in the nucleolus and cytosol / TICAM1,TRAF6-dependent induction of TAK1 complex / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / regulation of translational fidelity / Regulation of FZD by ubiquitination / Downregulation of ERBB4 signaling / p75NTR recruits signalling complexes / APC-Cdc20 mediated degradation of Nek2A / 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) / InlA-mediated entry of Listeria monocytogenes into host cells / Regulation of pyruvate metabolism / Protein methylation / TRAF6-mediated induction of TAK1 complex within TLR4 complex / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / Regulation of innate immune responses to cytosolic DNA / NF-kB is activated and signals survival / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Downregulation of ERBB2:ERBB3 signaling / NRIF signals cell death from the nucleus / Pexophagy / VLDLR internalisation and degradation / Regulation of PTEN localization / Nuclear events stimulated by ALK signaling in cancer / Activated NOTCH1 Transmits Signal to the Nucleus / ribosomal small subunit export from nucleus / Regulation of BACH1 activity / MAP3K8 (TPL2)-dependent MAPK1/3 activation / rough endoplasmic reticulum / laminin binding / Translesion synthesis by REV1 / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / InlB-mediated entry of Listeria monocytogenes into host cell / translation regulator activity / Translesion synthesis by POLK / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / positive regulation of cell cycle 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.0 Å | |||||||||
![]() | Cheng J / Lau B / Thoms M / Ameismeier M / Berninghausen O / Hurt E / Beckmann R | |||||||||
資金援助 | 1件
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![]() | ![]() タイトル: The nucleoplasmic phase of pre-40S formation prior to nuclear export. 著者: Jingdong Cheng / Benjamin Lau / Matthias Thoms / Michael Ameismeier / Otto Berninghausen / Ed Hurt / Roland Beckmann / ![]() ![]() 要旨: Biogenesis of the small ribosomal subunit in eukaryotes starts in the nucleolus with the formation of a 90S precursor and ends in the cytoplasm. Here, we elucidate the enigmatic structural ...Biogenesis of the small ribosomal subunit in eukaryotes starts in the nucleolus with the formation of a 90S precursor and ends in the cytoplasm. Here, we elucidate the enigmatic structural transitions of assembly intermediates from human and yeast cells during the nucleoplasmic maturation phase. After dissociation of all 90S factors, the 40S body adopts a close-to-mature conformation, whereas the 3' major domain, later forming the 40S head, remains entirely immature. A first coordination is facilitated by the assembly factors TSR1 and BUD23-TRMT112, followed by re-positioning of RRP12 that is already recruited early to the 90S for further head rearrangements. Eventually, the uS2 cluster, CK1 (Hrr25 in yeast) and the export factor SLX9 associate with the pre-40S to provide export competence. These exemplary findings reveal the evolutionary conserved mechanism of how yeast and humans assemble the 40S ribosomal subunit, but reveal also a few minor differences. | |||||||||
履歴 |
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構造の表示
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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 | ![]() | 96.2 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 50.4 KB 50.4 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 12.7 KB | 表示 | ![]() |
画像 | ![]() | 157.9 KB | ||
Filedesc metadata | ![]() | 12.3 KB | ||
その他 | ![]() ![]() | 162.1 MB 162.7 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 474.8 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 474.3 KB | 表示 | |
XML形式データ | ![]() | 13.3 KB | 表示 | |
CIF形式データ | ![]() | 17.9 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 7wtzMC ![]() 7wtnC ![]() 7wtoC ![]() 7wtpC ![]() 7wtqC ![]() 7wtrC ![]() 7wtsC ![]() 7wttC ![]() 7wtuC ![]() 7wtvC ![]() 7wtwC ![]() 7wtxC ![]() 7wu0C 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 | 類似検索 - 機能・相同性 ![]() |
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リンク
EMDBのページ | ![]() ![]() |
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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 | ![]() | ||||||||||||||||||||||||||||||||||||
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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: 1.059 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-追加マップ: #1
ファイル | emd_32806_additional_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-追加マップ: #2
ファイル | emd_32806_additional_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
+全体 : Yeast pre-40S ribosomal subunit
+超分子 #1: Yeast pre-40S ribosomal subunit
+分子 #1: 18S rRNA
+分子 #2: 40S ribosomal protein S5
+分子 #3: 40S ribosomal protein S12
+分子 #4: 40S ribosomal protein S15
+分子 #5: 40S ribosomal protein S16
+分子 #6: 40S ribosomal protein S17
+分子 #7: 40S ribosomal protein S18
+分子 #8: 40S ribosomal protein S19
+分子 #9: 40S ribosomal protein S25
+分子 #10: 40S ribosomal protein S28
+分子 #11: Ubiquitin-40S ribosomal protein S27a
+分子 #12: 40S ribosomal protein SA
+分子 #13: 40S ribosomal protein S3a
+分子 #14: 40S ribosomal protein S2
+分子 #15: 40S ribosomal protein S4, X isoform
+分子 #16: 40S ribosomal protein S6
+分子 #17: 40S ribosomal protein S7
+分子 #18: 40S ribosomal protein S8
+分子 #19: 40S ribosomal protein S9
+分子 #20: 40S ribosomal protein S11
+分子 #21: 40S ribosomal protein S13
+分子 #22: 40S ribosomal protein S14
+分子 #23: 40S ribosomal protein S21
+分子 #24: 40S ribosomal protein S15a
+分子 #25: 40S ribosomal protein S23
+分子 #26: 40S ribosomal protein S24
+分子 #27: 40S ribosomal protein S27
+分子 #28: 40S ribosomal protein S30
+分子 #29: RNA-binding protein PNO1
+分子 #30: RNA-binding protein NOB1
+分子 #31: Pre-rRNA-processing protein TSR1 homolog
+分子 #32: Bystin
+分子 #33: Protein LTV1 homolog
+分子 #34: RRP12-like protein
+分子 #35: ZINC ION
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 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: 7.4 |
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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: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / 平均電子線量: 44.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 0.8 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |