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Yorodumi- PDB-7wtt: Cryo-EM structure of a human pre-40S ribosomal subunit - State RR... -
+Open data
-Basic information
Entry | Database: PDB / ID: 7wtt | ||||||
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Title | Cryo-EM structure of a human pre-40S ribosomal subunit - State RRP12-A1 (with CK1) | ||||||
Components |
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Keywords | RIBOSOME / ribosome biogenesis / 40S ribosome | ||||||
Function / homology | Function and homology information peptidyl-glutamine methylation / regulation of protein localization to nucleolus / rRNA (guanine-N7)-methylation / tRNA methyltransferase activator activity / rRNA (guanine) methyltransferase activity / Activation of SMO / intermediate filament cytoskeleton organization / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / tRNA modification in the nucleus and cytosol / negative regulation of NLRP3 inflammasome complex assembly ...peptidyl-glutamine methylation / regulation of protein localization to nucleolus / rRNA (guanine-N7)-methylation / tRNA methyltransferase activator activity / rRNA (guanine) methyltransferase activity / Activation of SMO / intermediate filament cytoskeleton organization / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / tRNA modification in the nucleus and cytosol / negative regulation of NLRP3 inflammasome complex assembly / Methylation / trophectodermal cell differentiation / protein methyltransferase activity / positive regulation of rRNA processing / tRNA methylation / cellular response to nutrient / APC truncation mutants have impaired AXIN binding / AXIN missense mutants destabilize the destruction complex / Truncations of AMER1 destabilize the destruction complex / beta-catenin destruction complex / positive regulation of respiratory burst involved in inflammatory response / nucleolus organization / Beta-catenin phosphorylation cascade / Signaling by GSK3beta mutants / CTNNB1 S33 mutants aren't phosphorylated / CTNNB1 S37 mutants aren't phosphorylated / CTNNB1 S45 mutants aren't phosphorylated / CTNNB1 T41 mutants aren't phosphorylated / negative regulation of RNA splicing / rRNA methylation / neural crest cell differentiation / Disassembly of the destruction complex and recruitment of AXIN to the membrane / Maturation of nucleoprotein / U3 snoRNA binding / 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 / preribosome, small subunit precursor / negative regulation of ubiquitin protein ligase activity / Ribosomal scanning and start codon recognition / snoRNA binding / positive regulation of Rho protein signal transduction / Translation initiation complex formation / mammalian oogenesis stage / activation-induced cell death of T cells / fibroblast growth factor binding / Golgi organization / monocyte chemotaxis / Protein hydroxylation / SARS-CoV-1 modulates host translation machinery / mTORC1-mediated signalling / Peptide chain elongation / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / 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 / 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 / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / GTP hydrolysis and joining of the 60S ribosomal subunit / 90S preribosome / L13a-mediated translational silencing of Ceruloplasmin expression / TOR signaling / T cell proliferation involved in immune response / 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 / ribosomal small subunit export from nucleus / positive regulation of cell cycle / Nuclear events stimulated by ALK signaling in cancer / translation regulator activity / stress granule assembly / Mitotic Prometaphase / rough endoplasmic reticulum / EML4 and NUDC in mitotic spindle formation / gastrulation / MDM2/MDM4 family protein binding / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / 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 / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 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 | 7wtt.cif.gz | 1.9 MB | Display | PDBx/mmCIF format |
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PDB format | pdb7wtt.ent.gz | 1.4 MB | Display | PDB format |
PDBx/mmJSON format | 7wtt.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7wtt_validation.pdf.gz | 1.1 MB | Display | wwPDB validaton report |
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Full document | 7wtt_full_validation.pdf.gz | 1.1 MB | Display | |
Data in XML | 7wtt_validation.xml.gz | 163.3 KB | Display | |
Data in CIF | 7wtt_validation.cif.gz | 284.8 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/wt/7wtt ftp://data.pdbj.org/pub/pdb/validation_reports/wt/7wtt | HTTPS FTP |
-Related structure data
Related structure data | 32800MC 7wtnC 7wtoC 7wtpC 7wtqC 7wtrC 7wtsC 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: 604117.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) |
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+40S ribosomal protein ... , 23 types, 23 molecules RbBcEeFHGZYXWTSQPONLJIM
-Protein , 10 types, 10 molecules xwutrqKfaz
#13: 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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#15: Protein | Mass: 49673.258 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q13895 |
#17: 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: 54935.891 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q96GA3 |
#28: Protein | Mass: 14215.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9UI30 |
#29: 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 |
#30: Protein | Mass: 143916.516 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q5JTH9 |
#32: Protein | Mass: 18004.041 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62979 |
#33: Protein | Mass: 38944.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) References: UniProt: P48729, non-specific serine/threonine protein kinase |
#34: Protein | Mass: 25503.346 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q9NSI2 |
-Non-polymers , 2 types, 2 molecules
#35: Chemical | ChemComp-SAH / |
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#36: Chemical | ChemComp-ZN / |
-Details
Has ligand of interest | N |
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-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: #1-#34 / 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 FIELD / 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
Software |
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CTF correction | Details: Relion / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 103616 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 14.85 Å2 | ||||||||||||||||||||||||
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