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Yorodumi- PDB-1pn6: Domain-wise fitting of the crystal structure of T.thermophilus EF... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 1pn6 | ||||||
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| Title | Domain-wise fitting of the crystal structure of T.thermophilus EF-G into the low resolution map of the release complex.Puromycin.EFG.GDPNP of E.coli 70S ribosome. | ||||||
Components | Elongation factor G | ||||||
Keywords | BIOSYNTHETIC PROTEIN / Elongation Factor-G / E.coli 70S ribosome / Post-termination complex / Fitting of crystal structure / Cryo-EM | ||||||
| Function / homology | Function and homology informationribosome disassembly / translational elongation / translation elongation factor activity / GDP binding / ribosome binding / GTPase activity / GTP binding / magnesium ion binding / cytoplasm Similarity search - Function | ||||||
| Biological species | ![]() Thermus thermophilus (bacteria) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 10.8 Å | ||||||
Authors | Valle, M. / Zavialov, A. / 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. #1: Journal: J.Mol.Biol. / Year: 2000Title: STRUCTURE OF A MUTANT EF-G REVEALS DOMAIN III AND POSSIBLY THE FUSIDIC ACID BINDING SITE #2: Journal: Proc.Natl.Acad.Sci.USA / Year: 1998Title: Visualization of elongation factor G on the Escherichia coli 70S ribosome: the mechanism of translocation. #3: Journal: Cell(Cambridge,Mass.) / Year: 2001Title: A posttermination ribosomal complex is the guanine exchange factor for peptide reslease factor RF3. | ||||||
| History |
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| Remark 999 | The structure contains C alpha atoms only |
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 1pn6.cif.gz | 35.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb1pn6.ent.gz | 18.3 KB | Display | PDB format |
| PDBx/mmJSON format | 1pn6.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 1pn6_validation.pdf.gz | 749.8 KB | Display | wwPDB validaton report |
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| Full document | 1pn6_full_validation.pdf.gz | 749.4 KB | Display | |
| Data in XML | 1pn6_validation.xml.gz | 14.5 KB | Display | |
| Data in CIF | 1pn6_validation.cif.gz | 20.2 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/pn/1pn6 ftp://data.pdbj.org/pub/pdb/validation_reports/pn/1pn6 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 1362MC ![]() 1363MC ![]() 1364MC ![]() 1365MC ![]() 1366MC ![]() 1pn7C ![]() 1pn8C C: citing same article ( M: map data used to model this data |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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| 1 |
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Components
| #1: Protein | Mass: 76910.031 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() Thermus thermophilus (bacteria) / References: UniProt: P13551 |
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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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| Buffer solution | pH: 7.5 | ||||||||||||
| Specimen | Conc.: 32 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||
| Specimen support | Details: Quantifoil holley-carbon film grids | ||||||||||||
| Vitrification | Cryogen name: ETHANE / Details: Rapid-freezing in liquid ethane | ||||||||||||
| Crystal grow | *PLUS Method: electron microscopy / Details: electron microscopy |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Tecnai F20 / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TECNAI F20 / Date: Jun 1, 2001 |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 50000 X / Calibrated magnification: 49696 X / Nominal defocus max: 4000 nm / Nominal defocus min: 1500 nm / Cs: 2 mm |
| Specimen holder | Temperature: 93 K / Tilt angle max: 0 ° / Tilt angle min: 0 ° |
| Image recording | Electron dose: 20 e/Å2 / Film or detector model: KODAK SO-163 FILM |
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Processing
| CTF correction | Details: CTF correction of 3D-maps by Wiener filtration | ||||||||||||
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| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
| 3D reconstruction | Method: 3D projection matching; conjugate gradients with regularization Resolution: 10.8 Å / Actual pixel size: 2.82 Å / Magnification calibration: TMV Details: SPIDER package. CRYSTAL STRUCTURE OF THERMUS THERMOPHILUS EF-G H573A AT 2.8A RESOLUTION. Symmetry type: POINT | ||||||||||||
| Atomic model building | Protocol: OTHER / Space: REAL / Details: METHOD--Manual fitting in O | ||||||||||||
| Atomic model building | PDB-ID: 1FNM Accession code: 1FNM / Source name: PDB / Type: experimental model | ||||||||||||
| Refinement step | Cycle: LAST
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About Yorodumi




Thermus thermophilus (bacteria)
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