3J0L
Core of mammalian 80S pre-ribosome in complex with tRNAs fitted to a 9.8A cryo-EM map: classic PRE state 1
ELECTRON MICROSCOPY
Sample |
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CORE OF MAMMALIAN 80S PRE-RIBOSOME IN COMPLEX WITH TRNAS |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | FEI VITROBOT MARK I |
Cryogen Name | ETHANE |
Sample Vitrification Details | Ethane / Vitrobot (FEI) flash-frozen in liquid ethane |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 30448 |
Reported Resolution (Å) | 9.8 |
Resolution Method | |
Other Details | |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C1 |
Map-Model Fitting and Refinement | |||||
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Id | 1 (2WDK, 2XZM, 3O58) | 2 | 3 | ||
Refinement Space | REAL | ||||
Refinement Protocol | RIGID BODY FIT | ||||
Refinement Target | |||||
Overall B Value | |||||
Fitting Procedure | |||||
Details | METHOD--rigid body REFINEMENT PROTOCOL--rigid body DETAILS--40S | DETAILS--60S | DETAILS--tRNA |
Data Acquisition | |||||||||
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Detector Type | KODAK SO-163 FILM | ||||||||
Electron Dose (electrons/Å**2) | 20 |
Imaging Experiment | 1 |
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Date of Experiment | 2006-10-17 |
Temperature (Kelvin) | 77 |
Microscope Model | FEI POLARA 300 |
Minimum Defocus (nm) | 2000 |
Maximum Defocus (nm) | 4000 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | 2 |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | |
Nominal Magnification | 39000 |
Calibrated Magnification | 65520 |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details |
EM Software | ||
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Task | Software Package | Version |
MODEL FITTING | UCSF Chimera | |
RECONSTRUCTION | SPIDER |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
CTF CORRECTION OF EACH DEFOCUS GROUP VOLUME PRIOR TO BACK PROJECTION |