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- EMDB-1588: Cryo-EM structure of the native GroEL-GroES complex from Thermus ... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-1588 | |||||||||
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Title | Cryo-EM structure of the native GroEL-GroES complex from Thermus thermophilus encapsulating substrate inside the cavity. | |||||||||
![]() | a EM-map of the GroEL-GroES-ADP-peptide complex from Thermus thermophilus | |||||||||
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Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 23.0 Å | |||||||||
![]() | Kanno R / Koike-Takeshita A / Yokoyama K / Taguchi H / Mitsuoka K | |||||||||
![]() | ![]() Title: Cryo-EM structure of the native GroEL-GroES complex from thermus thermophilus encapsulating substrate inside the cavity. Authors: Ryo Kanno / Ayumi Koike-Takeshita / Ken Yokoyama / Hideki Taguchi / Kaoru Mitsuoka / ![]() Abstract: The chaperonin GroEL interacts with various proteins, leading them to adopt their correct conformations with the aid of GroES and ATP. The actual mechanism is still being debated. In this study, by ...The chaperonin GroEL interacts with various proteins, leading them to adopt their correct conformations with the aid of GroES and ATP. The actual mechanism is still being debated. In this study, by use of cryo-electron microscopy, we determined the solution structure of the Thermus thermophilus GroEL-GroES complex encapsulating its substrate proteins. We observed the averaged density of substrate proteins in the center of the GroEL-GroES cavity. The position of the averaged substrate density in the cavity suggested a repulsive interaction between a majority of the substrate proteins and the interior wall of the cavity, which is suitable for substrate release. In addition, we observed a distortion of the cis-GroEL ring, especially at the position near the substrate, which indicated that the interaction between the encapsulated proteins and the GroEL ring results in an adjustment in the cavity's shape to accommodate the substrate. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 39.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 9.8 KB 9.8 KB | Display Display | ![]() |
Images | ![]() | 107.1 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 233.1 KB | Display | ![]() |
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Full document | ![]() | 232.2 KB | Display | |
Data in XML | ![]() | 6.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | a EM-map of the GroEL-GroES-ADP-peptide complex from Thermus thermophilus | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.63 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : The GroEL-GroES-ADP-peptide complex from Thermus thermophilus
Entire | Name: The GroEL-GroES-ADP-peptide complex from Thermus thermophilus |
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Components |
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-Supramolecule #1000: The GroEL-GroES-ADP-peptide complex from Thermus thermophilus
Supramolecule | Name: The GroEL-GroES-ADP-peptide complex from Thermus thermophilus type: sample / ID: 1000 / Number unique components: 4 |
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Molecular weight | Theoretical: 870 KDa |
-Macromolecule #1: GroEL
Macromolecule | Name: GroEL / type: protein_or_peptide / ID: 1 / Name.synonym: chaperonin / Recombinant expression: Yes |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #2: GroES
Macromolecule | Name: GroES / type: protein_or_peptide / ID: 2 / Name.synonym: co-chaperonin / Recombinant expression: Yes |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #4: peptide
Macromolecule | Name: peptide / type: protein_or_peptide / ID: 4 / Recombinant expression: No |
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Source (natural) | Organism: synthetic construct (others) |
-Macromolecule #3: ADP
Macromolecule | Name: ADP / type: ligand / ID: 3 / Recombinant expression: No |
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Source (natural) | Organism: synthetic construct (others) |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Vitrification | Cryogen name: METHANE / Instrument: OTHER |
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Electron microscopy #1
Microscopy ID | 1 |
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Microscope | JEOL 3200FSC |
Image recording | Digitization - Scanner: ZEISS SCAI / Digitization - Sampling interval: 7 µm / Number real images: 336 / Bits/pixel: 12 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD |
Sample stage | Specimen holder: Side entry liquid nitrogen-cooled cryo specimen holder Specimen holder model: JEOL 3200FSC CRYOHOLDER |
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Electron microscopy #2
Microscopy ID | 2 |
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Microscope | JEOL 2200FS |
Image recording | Digitization - Scanner: ZEISS SCAI / Digitization - Sampling interval: 7 µm / Number real images: 336 / Bits/pixel: 12 |
Electron beam | Acceleration voltage: 200 kV / Electron source: ![]() |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD |
Sample stage | Specimen holder: Side entry liquid nitrogen-cooled cryo specimen holder Specimen holder model: JEOL 3200FSC CRYOHOLDER |
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Image processing
CTF correction | Details: CTF correction with wiener fIlter when 2D averaging |
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Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Algorithm: OTHER / Resolution.type: BY AUTHOR / Resolution: 23.0 Å / Resolution method: FSC 0.5 CUT-OFF / Software - Name: IMAGIC |
-Atomic model buiding 1
Initial model | PDB ID: ![]() 1wf4 |
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Refinement | Space: REAL |