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Yorodumi- PDB-6ke6: 3.4 angstrom cryo-EM structure of yeast 90S small subunit preribosome -
+Open data
-Basic information
Entry | Database: PDB / ID: 6ke6 | |||||||||
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Title | 3.4 angstrom cryo-EM structure of yeast 90S small subunit preribosome | |||||||||
Components |
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Keywords | RIBOSOME / ribosome assembly / 90S pre-ribosome / cryo-EM / Mtr4 | |||||||||
Function / homology | Function and homology information rRNA cytidine N-acetyltransferase activity / Noc4p-Nop14p complex / rRNA acetylation involved in maturation of SSU-rRNA / tRNA N-acetyltransferase activity / regulation of ribosomal protein gene transcription by RNA polymerase II / t-UTP complex / rRNA small subunit pseudouridine methyltransferase Nep1 / tRNA acetylation / RNA fragment catabolic process / CURI complex ...rRNA cytidine N-acetyltransferase activity / Noc4p-Nop14p complex / rRNA acetylation involved in maturation of SSU-rRNA / tRNA N-acetyltransferase activity / regulation of ribosomal protein gene transcription by RNA polymerase II / t-UTP complex / rRNA small subunit pseudouridine methyltransferase Nep1 / tRNA acetylation / RNA fragment catabolic process / CURI complex / UTP-C complex / rRNA 2'-O-methylation / Pwp2p-containing subcomplex of 90S preribosome / histone H2AQ104 methyltransferase activity / nuclear microtubule / Mpp10 complex / snoRNA guided rRNA 2'-O-methylation / rRNA (pseudouridine) methyltransferase activity / rRNA modification / regulation of rRNA processing / endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / septum digestion after cytokinesis / tRNA re-export from nucleus / snRNA binding / box C/D sno(s)RNA 3'-end processing / regulation of transcription by RNA polymerase I / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / endonucleolytic cleavage to generate mature 5'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rRNA methyltransferase activity / rDNA heterochromatin / positive regulation of rRNA processing / single-stranded telomeric DNA binding / box C/D methylation guide snoRNP complex / tRNA export from nucleus / U4/U6 snRNP / rRNA base methylation / Negative regulators of DDX58/IFIH1 signaling / rRNA primary transcript binding / SUMOylation of RNA binding proteins / sno(s)RNA-containing ribonucleoprotein complex / small nuclear ribonucleoprotein complex / protein localization to nucleolus / U4 snRNA binding / mTORC1-mediated signalling / O-methyltransferase activity / Protein hydroxylation / rRNA methylation / U3 snoRNA binding / mRNA modification / U4 snRNP / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / poly(A)+ mRNA export from nucleus / Formation of the ternary complex, and subsequently, the 43S complex / Translation initiation complex formation / preribosome, small subunit precursor / Ribosomal scanning and start codon recognition / snoRNA binding / precatalytic spliceosome / establishment of cell polarity / positive regulation of transcription by RNA polymerase I / Major pathway of rRNA processing in the nucleolus and cytosol / nucleolar large rRNA transcription by RNA polymerase I / spliceosomal complex assembly / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Formation of a pool of free 40S subunits / L13a-mediated translational silencing of Ceruloplasmin expression / 90S preribosome / regulation of translational fidelity / Ub-specific processing proteases / ribosomal subunit export from nucleus / RNA processing / 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) / U4/U6 x U5 tri-snRNP complex / enzyme activator activity / Transferases; Acyltransferases; Transferring groups other than aminoacyl groups / RNA endonuclease activity / nuclear periphery / Transferases; Transferring one-carbon groups; Methyltransferases / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / translational initiation / spliceosomal complex / maintenance of translational fidelity / mRNA splicing, via spliceosome / rRNA processing / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / peroxisome / ribosome biogenesis / ribosomal small subunit assembly / small ribosomal subunit / cytosolic small ribosomal subunit / cytoplasmic translation / tRNA binding / rRNA binding / ribosome Similarity search - Function | |||||||||
Biological species | Saccharomyces cerevisiae S288C (yeast) Saccharomyces cerevisiae (brewer's yeast) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | |||||||||
Authors | Du, Y. / Ye, K. / An, W. | |||||||||
Funding support | China, 2items
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Citation | Journal: To be published Title: 3.4 angstrom cryo-EM structure of yeast 90S small subunit preribosome Authors: Du, Y. / An, W. / Qi, S. / Ye, K. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6ke6.cif.gz | 5.1 MB | Display | PDBx/mmCIF format |
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PDB format | pdb6ke6.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 6ke6.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6ke6_validation.pdf.gz | 1.7 MB | Display | wwPDB validaton report |
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Full document | 6ke6_full_validation.pdf.gz | 1.8 MB | Display | |
Data in XML | 6ke6_validation.xml.gz | 549.9 KB | Display | |
Data in CIF | 6ke6_validation.cif.gz | 939.7 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ke/6ke6 ftp://data.pdbj.org/pub/pdb/validation_reports/ke/6ke6 | HTTPS FTP |
-Related structure data
Related structure data | 9964MC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
+RNA chain , 3 types, 3 molecules 3A5ASA
+40S ribosomal protein ... , 18 types, 18 molecules SCSFSGSHSISJSKSMSNSOSPSRSTSXSYSZScSd
+Protein , 15 types, 19 molecules 3B3C3G3HAGB15B5H5IRCRGRHRKRLRMRSRTRVX1
+Nucleolar protein ... , 2 types, 2 molecules 3D3E
+Ribosomal RNA-processing protein ... , 2 types, 2 molecules 3FRF
+U3 small nucleolar RNA-associated protein ... , 17 types, 17 molecules A4A5A8A9AEAFB2B3B8BEB65C5D5ERERPRQ
+U3 small nucleolar ribonucleoprotein protein ... , 3 types, 3 molecules 5F5GRB
+RRNA-processing protein ... , 2 types, 2 molecules 5J5K
+Ribosome biogenesis protein ... , 3 types, 3 molecules RARIRJ
+Nucleolar complex protein ... , 2 types, 2 molecules RNRO
+Non-polymers , 3 types, 4 molecules
+Details
-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: 90S pre-ribosome (Mtr4-depleted, Enp1-TAP) / Type: COMPLEX / Entity ID: #1-#67 / Source: NATURAL | |||||||||||||||
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Molecular weight | Value: 5 MDa / Experimental value: NO | |||||||||||||||
Source (natural) | Organism: Saccharomyces cerevisiae S288c (yeast) | |||||||||||||||
Buffer solution | pH: 7.4 | |||||||||||||||
Buffer component |
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Specimen | Conc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | |||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 | |||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277.15 K / Details: wait 30s and blot 2s before plunging |
-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 magnification: 25000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 1500 nm / Cs: 2.7 mm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 9.3 sec. / Electron dose: 50 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 3 / Num. of real images: 4723 |
Image scans | Movie frames/image: 32 / Used frames/image: 1-32 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 154939 | ||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 121139 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
Atomic model building |
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