6WX6
Cryo-EM Structure of Human Apoferritin Light Chain Vitrified Using Back-it-up
ELECTRON MICROSCOPY
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2FFX |
Sample |
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Human apoferritin light chain |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | HOMEMADE PLUNGER |
Cryogen Name | ETHANE-PROPANE |
Sample Vitrification Details | Back-it-up (ultrasonic specimen application and through-grid wicking in a high-speed specimen preparation device) was used |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 594259 |
Reported Resolution (Å) | 2 |
Resolution Method | FSC 0.143 CUT-OFF |
Other Details | |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | O |
Map-Model Fitting and Refinement | |||||
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Id | 1 (2FFX) | ||||
Refinement Space | REAL | ||||
Refinement Protocol | RIGID BODY FIT | ||||
Refinement Target | |||||
Overall B Value | 14.91 | ||||
Fitting Procedure | |||||
Details |
Data Acquisition | |||||||||
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Detector Type | FEI FALCON IV (4k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 27 |
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 |
IMAGE ACQUISITION | EPU | 2.6 |
CTF CORRECTION | cryoSPARC | 2 |
MODEL FITTING | UCSF Chimera | 1.13 |
INITIAL EULER ASSIGNMENT | cryoSPARC | 2 |
FINAL EULER ASSIGNMENT | cryoSPARC | 2 |
RECONSTRUCTION | cryoSPARC | 2 |
MODEL REFINEMENT | Coot | 0.8 |
MODEL REFINEMENT | PHENIX | 1.17 |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
PHASE FLIPPING AND AMPLITUDE CORRECTION | 673794 |