ELECTRON MICROSCOPY

Sample

PKD2 ion channel F629S variant protomer

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument LEICA EM GP
Cryogen Name ETHANE
Sample Vitrification Details Vitrification carried in air. Ethane temperature -183 C
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 215875
Reported Resolution (Å) 2.76
Resolution Method FSC 0.143 CUT-OFF
Other Details Final reconstruction performed with C4 symmetry imposed
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol ?
Refinement Target ?
Overall B Value 107.9
Fitting Procedure ?
Details The initial Alphafold model was fitted to the map using ChimeraX. Refinement was performed using ISOLDE and PHENIX.
Data Acquisition
Detector Type GATAN K3 (6k x 4k)
Electron Dose (electrons/Å2) 60
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS KRIOS
Minimum Defocus (nm) 600
Maximum Defocus (nm) 2400
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 130000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 4.5
IMAGE ACQUISITION SerialEM v4.1.0beta
CTF CORRECTION cryoSPARC 4.5
MODEL FITTING UCSF ChimeraX 1.8
MODEL FITTING ISOLDE 1.8
INITIAL EULER ASSIGNMENT cryoSPARC 4.5
FINAL EULER ASSIGNMENT cryoSPARC 4.5
CLASSIFICATION cryoSPARC ?
RECONSTRUCTION cryoSPARC 4.5
MODEL REFINEMENT ISOLDE 1.8
MODEL REFINEMENT PHENIX 1.21.2
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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