4V61
Homology model for the Spinach chloroplast 30S subunit fitted to 9.4A cryo-EM map of the 70S chlororibosome.
ELECTRON MICROSCOPY
Sample |
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spinach 70S chloro-ribosome |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | HOMEMADE PLUNGER |
Cryogen Name | ETHANE |
Sample Vitrification Details | 5 microliters applied to the grid then blotted for 3 seconds with Whatman number 1 filter paper before plunging in liquid ethane. |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 86370 |
Reported Resolution (Å) | 9.4 |
Resolution Method | |
Other Details | An 11.5 A E.coli 70S ribosome map was used as initial reference and then resulting 18 A map from reconstruction of 70S chloro-ribosome was used as a r ... |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C1 |
Map-Model Fitting and Refinement | |||||
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Id | 1 (2XYZ, 2ZXY) | ||||
Refinement Space | REAL | ||||
Refinement Protocol | RIGID BODY FIT | ||||
Refinement Target | Best visual fit using the program O | ||||
Overall B Value | |||||
Fitting Procedure | |||||
Details | METHOD--Cross-Correlation based manual fitting in O REFINEMENT PROTOCOL--Rigid Body |
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 | |
Temperature (Kelvin) | 93 |
Microscope Model | FEI TECNAI F20 |
Minimum Defocus (nm) | 700 |
Maximum Defocus (nm) | 3500 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | 2 |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | |
Nominal Magnification | 50000 |
Calibrated Magnification | 50760 |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 200 |
Imaging Details |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
CTF correction for each Micrograph |