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Yorodumi- PDB-7wts: Cryo-EM structure of a human pre-40S ribosomal subunit - State UTP14 -
+Open data
-Basic information
Entry | Database: PDB / ID: 7wts | ||||||
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Title | Cryo-EM structure of a human pre-40S ribosomal subunit - State UTP14 | ||||||
Components |
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Keywords | RIBOSOME / ribosome biogenesis / 40S ribosome | ||||||
Function / homology | Function and homology information 18S rRNA (adenine1779-N6/adenine1780-N6)-dimethyltransferase / peptidyl-glutamine methylation / 18S rRNA (adenine(1779)-N(6)/adenine(1780)-N(6))-dimethyltransferase activity / rRNA (guanine-N7)-methylation / tRNA methyltransferase activator activity / rRNA (guanine) methyltransferase activity / rRNA (adenine-N6,N6-)-dimethyltransferase activity / tRNA modification in the nucleus and cytosol / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Methylation ...18S rRNA (adenine1779-N6/adenine1780-N6)-dimethyltransferase / peptidyl-glutamine methylation / 18S rRNA (adenine(1779)-N(6)/adenine(1780)-N(6))-dimethyltransferase activity / rRNA (guanine-N7)-methylation / tRNA methyltransferase activator activity / rRNA (guanine) methyltransferase activity / rRNA (adenine-N6,N6-)-dimethyltransferase activity / tRNA modification in the nucleus and cytosol / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Methylation / protein methyltransferase activity / positive regulation of rRNA processing / tRNA methylation / negative regulation of RNA splicing / neural crest cell differentiation / rRNA methylation / Formation of the ternary complex, and subsequently, the 43S complex / rRNA modification in the nucleus and cytosol / erythrocyte homeostasis / U3 snoRNA binding / Ribosomal scanning and start codon recognition / negative regulation of ubiquitin protein ligase activity / preribosome, small subunit precursor / Translation initiation complex formation / Protein hydroxylation / mTORC1-mediated signalling / SARS-CoV-1 modulates host translation machinery / Peptide chain elongation / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Selenocysteine synthesis / Formation of a pool of free 40S subunits / ubiquitin ligase inhibitor activity / 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 / TOR signaling / L13a-mediated translational silencing of Ceruloplasmin expression / Major pathway of rRNA processing in the nucleolus and cytosol / Nuclear events stimulated by ALK signaling in cancer / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / translation regulator activity / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / positive regulation of cell cycle / stress granule assembly / 90S preribosome / rough endoplasmic reticulum / Mitotic Prometaphase / cytosolic ribosome / EML4 and NUDC in mitotic spindle formation / transcription initiation-coupled chromatin remodeling / translational initiation / translation initiation factor binding / Resolution of Sister Chromatid Cohesion / negative regulation of ubiquitin-dependent protein catabolic process / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / erythrocyte differentiation / Transferases; Transferring one-carbon groups; Methyltransferases / maturation of SSU-rRNA / innate immune response in mucosa / methyltransferase activity / mRNA 3'-UTR binding / neural tube closure / positive regulation of translation / RHO GTPases Activate Formins / small-subunit processome / maintenance of translational fidelity / response to virus / mRNA 5'-UTR binding / Regulation of expression of SLITs and ROBOs / cytoplasmic ribonucleoprotein granule / rRNA processing / Separation of Sister Chromatids / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit rRNA binding / antimicrobial humoral immune response mediated by antimicrobial peptide / glucose homeostasis / chromatin organization / cell body / small ribosomal subunit / cytosolic small ribosomal subunit / SARS-CoV-2 modulates host translation machinery / antibacterial humoral response / nuclear membrane / cytoplasmic translation / postsynaptic density / cell differentiation / protein stabilization / rRNA binding / ribosome / structural constituent of ribosome / defense response to Gram-positive bacterium / ribonucleoprotein complex / translation / positive regulation of apoptotic process / protein heterodimerization activity / intracellular membrane-bounded organelle Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||
Authors | Cheng, J. / Lau, B. / Thoms, M. / Ameismeier, M. / Berninghausen, O. / Hurt, E. / Beckmann, R. | ||||||
Funding support | 1items
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Citation | Journal: Nucleic Acids Res / Year: 2022 Title: The nucleoplasmic phase of pre-40S formation prior to nuclear export. Authors: Jingdong Cheng / Benjamin Lau / Matthias Thoms / Michael Ameismeier / Otto Berninghausen / Ed Hurt / Roland Beckmann / Abstract: 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. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7wts.cif.gz | 1.4 MB | Display | PDBx/mmCIF format |
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PDB format | pdb7wts.ent.gz | 1.1 MB | Display | PDB format |
PDBx/mmJSON format | 7wts.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/wt/7wts ftp://data.pdbj.org/pub/pdb/validation_reports/wt/7wts | HTTPS FTP |
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-Related structure data
Related structure data | 32799MC 7wtnC 7wtoC 7wtpC 7wtqC 7wtrC 7wttC 7wtuC 7wtvC 7wtwC 7wtxC 7wtzC 7wu0C M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-RNA chain , 1 types, 1 molecules 2
#1: RNA chain | Mass: 604102.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) |
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-40S ribosomal protein ... , 14 types, 14 molecules bBEeHGYXWONLJI
#2: Protein | Mass: 9480.186 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P42677 |
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#3: Protein | Mass: 30002.061 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P61247 |
#4: Protein | Mass: 29654.869 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62701 |
#5: Protein | Mass: 6668.938 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62861 |
#6: Protein | Mass: 22168.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62081 |
#7: Protein | Mass: 28751.906 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62753 |
#8: Protein | Mass: 15463.333 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62847 |
#10: Protein | Mass: 15844.666 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62266 |
#11: Protein | Mass: 14865.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62244 |
#13: Protein | Mass: 16302.772 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62263 |
#14: Protein | Mass: 17259.389 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62277 |
#15: Protein | Mass: 18468.826 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62280 |
#16: Protein | Mass: 22641.564 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P46781 |
#17: Protein | Mass: 24263.387 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62241 |
-Protein , 8 types, 8 molecules xurqKz53
#9: Protein | Mass: 27970.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9NRX1 |
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#12: Protein | Mass: 91951.188 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q2NL82 |
#18: Protein | Mass: 14215.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9UI30 |
#19: Protein | Mass: 31925.428 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) References: UniProt: O43709, Transferases; Transferring one-carbon groups; Methyltransferases |
#20: Protein | Mass: 143916.516 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q5JTH9 |
#21: Protein | Mass: 25503.346 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9NSI2 |
#22: Protein | Mass: 88129.125 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9BVJ6 |
#23: Protein | Mass: 35292.434 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) References: UniProt: Q9UNQ2, 18S rRNA (adenine1779-N6/adenine1780-N6)-dimethyltransferase |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Yeast pre-40S ribosomal subunit / Type: RIBOSOME / Entity ID: all / Source: NATURAL |
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Source (natural) | Organism: Homo sapiens (human) |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2500 nm / Nominal defocus min: 800 nm |
Image recording | Electron dose: 44 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
CTF correction | Details: Relion / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 8843 / Symmetry type: POINT |