6RQC
Cryo-EM structure of an MCM loading intermediate
ELECTRON MICROSCOPY
Sample |
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The MCM-ORC (MO) loading intermediate |
Sample Components |
MCM-Orc6N lobe of the MCM-ORC (MO) origin licensing intermediate. |
Orc1-5-Orc6C lobe of the MCM-ORC (MO) origin licensing intermediate |
The MCM-ORC (MO) loading intermediate protein complex |
DNA |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | LEICA EM GP |
Cryogen Name | ETHANE |
Sample Vitrification Details | 10 second incubation, 3.5 seconds single side blotting. |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 177637 |
Reported Resolution (Å) | 4.4 |
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 (5ZR1, 6EYC, 5BK4, 6F0L) | ||||
Refinement Space | REAL | ||||
Refinement Protocol | RIGID BODY FIT | ||||
Refinement Target | |||||
Overall B Value | |||||
Fitting Procedure | |||||
Details |
Data Acquisition | |||||||||
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Detector Type | GATAN K2 SUMMIT (4k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 1.68 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN KRIOS |
Minimum Defocus (nm) | |
Maximum Defocus (nm) | |
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 | |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details |
EM Software | ||
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Task | Software Package | Version |
CTF CORRECTION | RELION | 3 |
CTF CORRECTION | Gctf | 1.18 |
MODEL FITTING | UCSF Chimera | 1.11.2 |
INITIAL EULER ASSIGNMENT | RELION | 3 |
FINAL EULER ASSIGNMENT | RELION | 3 |
CLASSIFICATION | RELION | 3 |
RECONSTRUCTION | RELION | 3 |
MODEL REFINEMENT | PHENIX | 1.14 |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
PHASE FLIPPING AND AMPLITUDE CORRECTION |