8FVR
CryoEM structure of E.coli transcription elongation complex
ELECTRON MICROSCOPY
Sample |
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E. coli transcription elongation complex (EC) |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | FEI VITROBOT MARK IV |
Cryogen Name | ETHANE |
Sample Vitrification Details |
3D Reconstruction | |
---|---|
Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 212142 |
Reported Resolution (Å) | 2.42 |
Resolution Method | FSC 0.143 CUT-OFF |
Other Details | |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C1 |
Map-Model Fitting and Refinement | |||||
---|---|---|---|---|---|
Id | 1 | ||||
Refinement Space | |||||
Refinement Protocol | RIGID BODY FIT | ||||
Refinement Target | |||||
Overall B Value | |||||
Fitting Procedure | |||||
Details |
Data Acquisition | |||||||||
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Detector Type | GATAN K3 BIOQUANTUM (6k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 59.07 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN KRIOS |
Minimum Defocus (nm) | 900 |
Maximum Defocus (nm) | 1900 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | 2.7 |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
Nominal Magnification | 105000 |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details |
EM Software | ||
---|---|---|
Task | Software Package | Version |
IMAGE ACQUISITION | Leginon | 3.5 |
MODEL FITTING | UCSF Chimera | v1.15 |
MODEL FITTING | Coot | v0.8.9.2 |
MODEL FITTING | PHENIX | v1.17.1 |
MODEL REFINEMENT | Coot | v0.8.9.2 |
MODEL REFINEMENT | PHENIX | v1.17.1 |
CLASSIFICATION | cryoSPARC | |
RECONSTRUCTION | cryoSPARC |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
PHASE FLIPPING AND AMPLITUDE CORRECTION | 786069 | In total, 786,069 particles were picked in template-free mode |