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Yorodumi- PDB-7r6k: State E2 nucleolar 60S ribosomal intermediate - Model for Noc2/No... -
+Open data
-Basic information
Entry | Database: PDB / ID: 7r6k | ||||||||||||
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Title | State E2 nucleolar 60S ribosomal intermediate - Model for Noc2/Noc3 region | ||||||||||||
Components |
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Keywords | RIBOSOME / ribosome biogenesis / DEAD-box ATPases / methyltransferases / nucleolus | ||||||||||||
Function / homology | Function and homology information 25S rRNA (cytosine2870-C5)-methyltransferase / 27S pre-rRNA (guanosine2922-2'-O)-methyltransferase / Noc1p-Noc2p complex / Noc2p-Noc3p complex / rRNA (guanosine-2'-O-)-methyltransferase activity / nuclear division / exonucleolytic trimming to generate mature 5'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rRNA (uridine-2'-O-)-methyltransferase activity / rRNA (guanine) methyltransferase activity / endonucleolytic cleavage in ITS1 upstream of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) ...25S rRNA (cytosine2870-C5)-methyltransferase / 27S pre-rRNA (guanosine2922-2'-O)-methyltransferase / Noc1p-Noc2p complex / Noc2p-Noc3p complex / rRNA (guanosine-2'-O-)-methyltransferase activity / nuclear division / exonucleolytic trimming to generate mature 5'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rRNA (uridine-2'-O-)-methyltransferase activity / rRNA (guanine) methyltransferase activity / endonucleolytic cleavage in ITS1 upstream of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rRNA (cytosine-C5-)-methyltransferase activity / endonucleolytic cleavage in 5'-ETS 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) / PeBoW complex / intracellular mRNA localization / pre-replicative complex assembly involved in nuclear cell cycle DNA replication / nuclear pre-replicative complex / rRNA base methylation / rRNA primary transcript binding / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rRNA methylation / protein folding chaperone complex / Major pathway of rRNA processing in the nucleolus and cytosol / 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 / preribosome, large subunit precursor / L13a-mediated translational silencing of Ceruloplasmin expression / ribosomal large subunit export from nucleus / DNA replication initiation / mRNA transport / ribonucleoprotein complex binding / 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) / maturation of LSU-rRNA / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / nuclear periphery / assembly of large subunit precursor of preribosome / ribosomal large subunit biogenesis / rRNA processing / ribosome biogenesis / large ribosomal subunit rRNA binding / 5S rRNA binding / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribonucleoprotein complex / cell division / mRNA binding / chromatin binding / nucleolus / mitochondrion / DNA binding / RNA binding / nucleoplasm / identical protein binding / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | Saccharomyces cerevisiae BY4741 (yeast) | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.17 Å | ||||||||||||
Authors | Cruz, V.E. / Sekulski, K. / Peddada, N. / Erzberger, J.P. | ||||||||||||
Funding support | United States, 3items
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Citation | Journal: Nat Struct Mol Biol / Year: 2022 Title: Sequence-specific remodeling of a topologically complex RNP substrate by Spb4. Authors: Victor Emmanuel Cruz / Kamil Sekulski / Nagesh Peddada / Carolin Sailer / Sahana Balasubramanian / Christine S Weirich / Florian Stengel / Jan P Erzberger / Abstract: DEAD-box ATPases are ubiquitous enzymes essential in all aspects of RNA biology. However, the limited in vitro catalytic activities described for these enzymes are at odds with their complex cellular ...DEAD-box ATPases are ubiquitous enzymes essential in all aspects of RNA biology. However, the limited in vitro catalytic activities described for these enzymes are at odds with their complex cellular roles, most notably in driving large-scale RNA remodeling steps during the assembly of ribonucleoproteins (RNPs). We describe cryo-EM structures of 60S ribosomal biogenesis intermediates that reveal how context-specific RNA unwinding by the DEAD-box ATPase Spb4 results in extensive, sequence-specific remodeling of rRNA secondary structure. Multiple cis and trans interactions stabilize Spb4 in a post-catalytic, high-energy intermediate that drives the organization of the three-way junction at the base of rRNA domain IV. This mechanism explains how limited strand separation by DEAD-box ATPases is leveraged to provide non-equilibrium directionality and ensure efficient and accurate RNP assembly. | ||||||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7r6k.cif.gz | 550.6 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7r6k.ent.gz | 387.3 KB | Display | PDB format |
PDBx/mmJSON format | 7r6k.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7r6k_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
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Full document | 7r6k_full_validation.pdf.gz | 1.4 MB | Display | |
Data in XML | 7r6k_validation.xml.gz | 75.4 KB | Display | |
Data in CIF | 7r6k_validation.cif.gz | 115.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/r6/7r6k ftp://data.pdbj.org/pub/pdb/validation_reports/r6/7r6k | HTTPS FTP |
-Related structure data
Related structure data | 24280MC 7nacC 7nadC 7nafC 7r6qC 7r72C 7r7aC 7r7cC 7u0hC C: citing same article (ref.) M: map data used to model this data |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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-Components
-Protein , 7 types, 7 molecules 78IJlqw
#2: Protein | Mass: 23652.645 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: P43586 |
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#3: Protein | Mass: 81719.289 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: P39744 |
#6: Protein | Mass: 75689.008 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: Q07896 |
#7: Protein | Mass: 49842.613 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: P36049 |
#11: Protein | Mass: 20411.699 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: Q08962 |
#13: Protein | Mass: 69912.164 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 References: UniProt: P40991, 25S rRNA (cytosine2870-C5)-methyltransferase |
#15: Protein | Mass: 96656.172 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 References: UniProt: P25582, 27S pre-rRNA (guanosine2922-2'-O)-methyltransferase |
-Ribosome biogenesis protein ... , 3 types, 3 molecules Amr
#4: Protein | Mass: 33585.414 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: Q08235 |
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#12: Protein | Mass: 91830.609 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: Q04660 |
#14: Protein | Mass: 29786.783 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: A6ZR80 |
-60S ribosomal protein ... , 4 types, 4 molecules GNgi
#5: Protein | Mass: 28175.820 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: P17076 |
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#8: Protein | Mass: 24482.357 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: P05748 |
#9: Protein | Mass: 13673.196 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: P87262 |
#10: Protein | Mass: 11151.259 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: P05745 |
-RNA chain / Protein/peptide , 2 types, 2 molecules 15
#16: Protein/peptide | Mass: 1082.234 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 / References: UniProt: A0A6A5Q2X9 |
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#1: RNA chain | Mass: 49285.230 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae BY4741 (yeast) / Strain: BY4741 |
-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: Nucleolar 60S intermediate purified with tags on Ytm1 and Spb4 Type: RIBOSOME / Entity ID: all / Source: NATURAL | ||||||||||||||||||||||||||||||
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Molecular weight | Value: 3.3 MDa / Experimental value: NO | ||||||||||||||||||||||||||||||
Source (natural) | Organism: Saccharomyces cerevisiae BY4741 (yeast) | ||||||||||||||||||||||||||||||
Buffer solution | pH: 8 | ||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 0.45 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 R2/2 | ||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
-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: 81000 X / Nominal defocus max: 2200 nm / Nominal defocus min: 900 nm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 0.05 sec. / Electron dose: 1.2 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 4523 |
-Processing
Software |
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EM software |
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CTF correction | Type: NONE | ||||||||||||||||||||||||
Particle selection | Num. of particles selected: 825096 | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.17 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 198000 / Algorithm: FOURIER SPACE / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | Protocol: AB INITIO MODEL / Space: REAL | ||||||||||||||||||||||||
Atomic model building | PDB-ID: 6ELZ Accession code: 6ELZ / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 47.33 Å2 | ||||||||||||||||||||||||
Refine LS restraints |
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