7WZN
PSI-LHCI from Chlamydomonas reinhardtii with bound ferredoxin
ELECTRON MICROSCOPY
Sample |
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Photosystem I from Chlamydomonas reinhardtii with bound ferredoxin. |
Sample Components |
Membrane supercomplex |
ferredoxin |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | FEI VITROBOT MARK IV |
Cryogen Name | ETHANE |
Sample Vitrification Details | 2.6 microliter of sample were applied to cryo-grids and blotted for 3.5 seconds using Whatman #1 before plunge freezing. |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 48941 |
Reported Resolution (Å) | 4.9 |
Resolution Method | FSC 0.143 CUT-OFF |
Other Details | |
Refinement Type | |
Symmetry Type | POINT |
Map-Model Fitting and Refinement | |||||
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Id | 1 (6JO5) | ||||
Refinement Space | |||||
Refinement Protocol | RIGID BODY FIT | ||||
Refinement Target | Correlation coefficient | ||||
Overall B Value | |||||
Fitting Procedure | |||||
Details |
Data Acquisition | |||||||||
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Detector Type | FEI FALCON II (4k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 91 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN KRIOS |
Minimum Defocus (nm) | 1250 |
Maximum Defocus (nm) | 2500 |
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 | 75000 |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details | Preliminary grid screening was performed manually using a JEOL JEM-3000SFF microscope. |
EM Software | ||
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Task | Software Package | Version |
IMAGE ACQUISITION | EPU | |
CTF CORRECTION | Gctf | |
MODEL FITTING | UCSF Chimera | |
MODEL FITTING | Coot | |
MODEL REFINEMENT | PHENIX | |
INITIAL EULER ASSIGNMENT | cryoSPARC | 2 |
FINAL EULER ASSIGNMENT | cryoSPARC | 2 |
CLASSIFICATION | cryoSPARC | 2 |
RECONSTRUCTION | cryoSPARC | 2 |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
PHASE FLIPPING ONLY | 857909 |