6XQN
Structure of a mitochondrial calcium uniporter holocomplex (MICU1, MICU2, MCU, EMRE) in low Ca2+
ELECTRON MICROSCOPY
Sample |
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Mitochondrial Calcium Uniporter holocomplex |
Sample Components |
EMRE |
MCU |
MICU1-MICU2 heterodimer |
Specimen Preparation | |
---|---|
Sample Aggregation State | PARTICLE |
Vitrification Instrument | FEI VITROBOT MARK IV |
Cryogen Name | ETHANE |
Sample Vitrification Details | 2 second blot, blot force of 0 |
3D Reconstruction | |
---|---|
Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 350160 |
Reported Resolution (Å) | 3.3 |
Resolution Method | FSC 0.143 CUT-OFF |
Other Details | |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C2 |
Map-Model Fitting and Refinement | |||||
---|---|---|---|---|---|
Id | 1 | ||||
Refinement Space | REAL | ||||
Refinement Protocol | AB INITIO MODEL | ||||
Refinement Target | Correlation coefficient | ||||
Overall B Value | 124 | ||||
Fitting Procedure | |||||
Details |
Data Acquisition | |||||||||
---|---|---|---|---|---|---|---|---|---|
Detector Type | GATAN K3 BIOQUANTUM (6k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 71 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TITAN KRIOS |
Minimum Defocus (nm) | -1000 |
Maximum Defocus (nm) | -3000 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
Nominal Magnification | 22500 |
Calibrated Magnification | |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 300 |
Imaging Details |
EM Software | ||
---|---|---|
Task | Software Package | Version |
IMAGE ACQUISITION | SerialEM | |
CTF CORRECTION | CTFFIND | 4.1.5 |
MODEL FITTING | Coot | 0.8.8 |
INITIAL EULER ASSIGNMENT | cryoSPARC | v2.12.4 |
INITIAL EULER ASSIGNMENT | RELION | 3.0 |
FINAL EULER ASSIGNMENT | RELION | 3.0 |
CLASSIFICATION | cryoSPARC | v2.12.4 |
RECONSTRUCTION | RELION | 3.0 |
MODEL REFINEMENT | PHENIX | 1.17.1-3660 |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
PHASE FLIPPING AND AMPLITUDE CORRECTION | 17440131 |