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Open data
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Basic information
Entry | Database: PDB / ID: 8i7j | ||||||
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Title | Yeast 40S-eIF4B - partially open conformation of the 40S head | ||||||
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![]() | RIBOSOME | ||||||
Function / homology | ![]() endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / translation regulator activity / 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) / 90S preribosome / rescue of stalled ribosome / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of apoptotic signaling pathway / maturation of SSU-rRNA / small-subunit processome / protein kinase C binding ...endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / translation regulator activity / 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) / 90S preribosome / rescue of stalled ribosome / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of apoptotic signaling pathway / maturation of SSU-rRNA / small-subunit processome / protein kinase C binding / modification-dependent protein catabolic process / rRNA processing / protein tag activity / ribosome binding / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / cytoplasmic translation / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / translation / positive regulation of protein phosphorylation / mRNA binding / ubiquitin protein ligase binding / nucleolus / RNA binding / zinc ion binding / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.6 Å | ||||||
![]() | Datey, A. / Khaja, F.T. / Hussain, T. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Yeast eukaryotic initiation factor 4B remodels the mRNA entry site on the small ribosomal subunit Authors: Datey, A. / Hussain, T. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.7 MB | Display | ![]() |
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PDB format | ![]() | 1.3 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 35216MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-40S ribosomal protein ... , 17 types, 17 molecules ABEGHIMOQVYZabcde
#2: Protein | Mass: 28264.525 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#3: Protein | Mass: 28971.643 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#6: Protein | Mass: 29617.514 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#8: Protein | Mass: 26970.391 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#9: Protein | Mass: 21735.297 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#10: Protein | Mass: 22642.727 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#14: Protein | Mass: 14466.398 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#16: Protein | Mass: 14530.655 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#18: Protein | Mass: 15874.531 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#23: Protein | Mass: 9797.949 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#26: Protein | Mass: 15194.549 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#27: Protein | Mass: 12002.116 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#28: Protein | Mass: 13539.957 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#29: Protein | Mass: 8884.362 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#30: Protein | Mass: 7549.824 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#31: Protein | Mass: 6662.570 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#32: Protein | Mass: 7141.421 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Protein , 16 types, 16 molecules CDFJKLNPRSTUWXfg
#4: Protein | Mass: 27649.979 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#5: Protein | Mass: 26300.535 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#7: Protein | Mass: 25385.975 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#11: Protein | Mass: 21587.049 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#12: Protein | Mass: 12584.377 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#13: Protein | Mass: 17843.930 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#15: Protein | Mass: 16989.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#17: Protein | Mass: 15986.796 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#19: Protein | Mass: 15722.216 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#20: Protein | Mass: 17084.602 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#21: Protein | Mass: 15879.010 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#22: Protein | Mass: 13337.604 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#24: Protein | Mass: 14645.041 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#25: Protein | Mass: 16047.897 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#33: Protein | Mass: 17110.977 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#34: Protein | Mass: 35830.945 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-RNA chain / Protein/peptide , 2 types, 2 molecules 2h
#1: RNA chain | Mass: 579545.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#35: Protein/peptide | Mass: 3354.243 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
-Non-polymers , 2 types, 5 molecules ![](data/chem/img/MG.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/ZN.gif)
#36: Chemical | #37: Chemical | |
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-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 |
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Sample preparation
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Molecular weight |
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Source (natural) | Cellular location: cytoplasm
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Source (recombinant) | Organism: ![]() ![]() | ||||||||||||||||||||||||||||
Buffer solution | pH: 7.4 Details: 20 mM HEPES pH7.4, 100 mM potassium acetate pH7.6, 2.5 mM Magnesium acetate, 2 mM DTT | ||||||||||||||||||||||||||||
Buffer component |
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Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: This class of empty or only 40S was a part of the reaction mixture containing 40S and the Saccharomyces cerevisiae eukaryotic initiation factor 4B present in a 1:10 molar ratio | ||||||||||||||||||||||||||||
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: 295 K Details: Vitrification was carried out in nitrogen atmosphere. |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
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Microscopy | Model: FEI TALOS ARCTICA Details: Preliminary grid screening was done manually using the Latitude-S |
Electron gun | Electron source: ![]() |
Electron lens | Mode: DIFFRACTION / Nominal magnification: 42000 X / Calibrated magnification: 42000 X / Nominal defocus max: 3000 nm / Nominal defocus min: 1500 nm / Calibrated defocus min: 1500 nm / Calibrated defocus max: 3000 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: OTHER |
Specimen holder | Cryogen: NITROGEN / Temperature (max): 98 K / Temperature (min): 77 K |
Image recording | Average exposure time: 8 sec. / Electron dose: 50 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 6 / Num. of real images: 7975 Details: Images were collected in movie-mode at 20 frames in 8 seconds |
Image scans | Movie frames/image: 20 / Used frames/image: 4-16 |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1492547 | ||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 4.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 108616 / Algorithm: BACK PROJECTION / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Target criteria: Cross-correlation coefficient | ||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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