3JA1
Activation of GTP Hydrolysis in mRNA-tRNA Translocation by Elongation Factor G
ELECTRON MICROSCOPY
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3J0U |
Sample |
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pre-translocational 70S ribosome complex |
Sample Components |
70S ribosome |
Elongation factor G |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | FEI VITROBOT MARK IV |
Cryogen Name | ETHANE |
Sample Vitrification Details | Plunged into liquid ethane (FEI VITROBOT MARK IV) |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 50000 |
Reported Resolution (Å) | 3.6 |
Resolution Method | FSC 0.143 CUT-OFF |
Other Details | |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C1 |
Map-Model Fitting and Refinement | |||||
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Id | 1 (3J0U) | ||||
Refinement Space | REAL | ||||
Refinement Protocol | FLEXIBLE FIT | ||||
Refinement Target | |||||
Overall B Value | |||||
Fitting Procedure | |||||
Details | REFINEMENT PROTOCOL--FLEXIBLE |
Data Acquisition | |||||||||
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Detector Type | DIRECT ELECTRON DE-12 (4k x 3k) | ||||||||
Electron Dose (electrons/Å**2) |
Imaging Experiment | 1 |
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Date of Experiment | 2013-08-29 |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN |
Minimum Defocus (nm) | 1500 |
Maximum Defocus (nm) | 5000 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | 0.1 |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
Nominal Magnification | 55000 |
Calibrated Magnification | 58000 |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details |
EM Software | ||
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Task | Software Package | Version |
MODEL FITTING | MDFF | |
RECONSTRUCTION | RELION |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
CTFFIND3 and CTFIT |