ELECTRON MICROSCOPY

Sample

Polycystin-2 channel tetramer (residues 185-723)

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details 3 microlitres were applied to the grid and blotted for 3secs prior to plunge in liquid ethane
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 19546
Reported Resolution (Å) 4.22
Resolution Method FSC 0.143 CUT-OFF
Other Details Resolution determined by gold-standard FSC procedure as implemented in RELION
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space RECIPROCAL
Refinement Protocol AB INITIO MODEL
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details Model was built directly into map de novo
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 45.1
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI POLARA 300
Minimum Defocus (nm) 1100
Maximum Defocus (nm) 4500
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2
Imaging Mode BRIGHT FIELD
Specimen Holder Model SIDE ENTRY, EUCENTRIC
Nominal Magnification 37037
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION RELION 1.3
IMAGE ACQUISITION SerialEM ?
CTF CORRECTION CTFFIND 4.0.8
CTF CORRECTION RELION 1.3
MODEL FITTING Coot ?
MODEL REFINEMENT REFMAC 5.8.0135
INITIAL EULER ASSIGNMENT RELION 1.3
FINAL EULER ASSIGNMENT RELION 1.3
CLASSIFICATION RELION 1.3
RECONSTRUCTION RELION 1.3
MODEL REFINEMENT RELION 1.3
MODEL REFINEMENT CTFFIND 4
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION CTF correction as implemented in CTTFIND4/RELION
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