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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-1365 | |||||||||
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| Title | Locking and unlocking of ribosomal motions. | |||||||||
Map data | Cryo-EM map of E.coli 70S ribosome | |||||||||
Sample |
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| Function / homology | Function and homology informationribosome disassembly / translational elongation / translation elongation factor activity / GDP binding / ribosome binding / small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / tRNA binding / rRNA binding ...ribosome disassembly / translational elongation / translation elongation factor activity / GDP binding / ribosome binding / small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / tRNA binding / rRNA binding / structural constituent of ribosome / translation / GTPase activity / GTP binding / magnesium ion binding / cytoplasm Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 11.75 Å | |||||||||
Authors | Mikel V / Andrey Z / Sengupta J / Rawat U / Ehrenberg M / Frank J | |||||||||
Citation | Journal: Cell / Year: 2003Title: Locking and unlocking of ribosomal motions. Authors: Mikel Valle / Andrey Zavialov / Jayati Sengupta / Urmila Rawat / Måns Ehrenberg / Joachim Frank / ![]() Abstract: During the ribosomal translocation, the binding of elongation factor G (EF-G) to the pretranslocational ribosome leads to a ratchet-like rotation of the 30S subunit relative to the 50S subunit in the ...During the ribosomal translocation, the binding of elongation factor G (EF-G) to the pretranslocational ribosome leads to a ratchet-like rotation of the 30S subunit relative to the 50S subunit in the direction of the mRNA movement. By means of cryo-electron microscopy we observe that this rotation is accompanied by a 20 A movement of the L1 stalk of the 50S subunit, implying that this region is involved in the translocation of deacylated tRNAs from the P to the E site. These ribosomal motions can occur only when the P-site tRNA is deacylated. Prior to peptidyl-transfer to the A-site tRNA or peptide removal, the presence of the charged P-site tRNA locks the ribosome and prohibits both of these motions. | |||||||||
| History |
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Structure visualization
| Movie |
Movie viewer |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_1365.map.gz | 7.9 MB | EMDB map data format | |
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| Header (meta data) | emd-1365-v30.xml emd-1365.xml | 10 KB 10 KB | Display Display | EMDB header |
| Images | 1365.gif | 58 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-1365 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-1365 | HTTPS FTP |
-Validation report
| Summary document | emd_1365_validation.pdf.gz | 245 KB | Display | EMDB validaton report |
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| Full document | emd_1365_full_validation.pdf.gz | 244.2 KB | Display | |
| Data in XML | emd_1365_validation.xml.gz | 5.8 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-1365 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-1365 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 1pn6MC ![]() 1pn7MC ![]() 1pn8MC ![]() 1362C ![]() 1363C ![]() 1364C ![]() 1366C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_1365.map.gz / Format: CCP4 / Size: 8.2 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Cryo-EM map of E.coli 70S ribosome | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 2.82 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 : EF-G bound Release Complex in the presence of Puromycin, GDP and fus
| Entire | Name: EF-G bound Release Complex in the presence of Puromycin, GDP and fus |
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| Components |
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-Supramolecule #1000: EF-G bound Release Complex in the presence of Puromycin, GDP and fus
| Supramolecule | Name: EF-G bound Release Complex in the presence of Puromycin, GDP and fus type: sample / ID: 1000 / Number unique components: 5 |
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-Supramolecule #1: Release Complex
| Supramolecule | Name: Release Complex / type: complex / ID: 1 / Details: mRNA, tRNA / Recombinant expression: No / Ribosome-details: ribosome-prokaryote: ALL |
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| Source (natural) | Organism: ![]() |
-Macromolecule #1: Puromycin
| Macromolecule | Name: Puromycin / type: ligand / ID: 1 / Details: Antibiotic / Recombinant expression: No |
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| Source (natural) | Organism: synthetic construct (others) |
| Chemical component information | ![]() ChemComp-PUY: |
-Macromolecule #2: EF-G
| Macromolecule | Name: EF-G / type: ligand / ID: 2 / Recombinant expression: No |
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| Source (natural) | Organism: ![]() |
-Macromolecule #3: GDP
| Macromolecule | Name: GDP / type: ligand / ID: 3 / Recombinant expression: No |
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| Source (natural) | Organism: synthetic construct (others) |
-Macromolecule #4: Fusidic acid
| Macromolecule | Name: Fusidic acid / type: ligand / ID: 4 / Details: Antibiotic / Recombinant expression: No |
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| Source (natural) | Organism: synthetic construct (others) |
| Chemical component information | ![]() ChemComp-FUA: |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Vitrification | Cryogen name: ETHANE / Instrument: OTHER / Details: Rapid-freezing in liquid ethane |
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Electron microscopy
| Microscope | FEI TECNAI 20 |
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| Temperature | Average: 93 K |
| Alignment procedure | Legacy - Electron beam tilt params: 0 |
| Date | Jul 11, 2003 |
| Image recording | Category: FILM / Film or detector model: KODAK SO-163 FILM / Digitization - Scanner: ZEISS SCAI / Digitization - Sampling interval: 14 µm |
| Tilt angle min | 0 |
| Tilt angle max | 0 |
| Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Calibrated magnification: 49696 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal magnification: 50000 |
| Sample stage | Specimen holder: cryo transfer / Specimen holder model: GATAN LIQUID NITROGEN |
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Image processing
| CTF correction | Details: CTF correctionn of 3D map |
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| Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Algorithm: OTHER / Resolution.type: BY AUTHOR / Resolution: 11.75 Å / Resolution method: FSC 0.5 CUT-OFF / Software - Name: SPIDER, package / Number images used: 1 |
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