9ATW

ELECTRON MICROSCOPY

Sample

Phenol Soluble Modulin alpha1 (PSMAlpha1) (PSMa1)

Specimen Preperation
Sample Aggregation State FILAMENT
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE-PROPANE
Sample Vitrification Details plunge-frozen in liquid ethane using a Vitrobot Mark IV plunge freezer with a blot force of zero at 4C and 99% humidity.
3D Reconstruction
Reconstruction Method HELICAL
Number of Particles 100
Reported Resolution (Å) 3.5
Resolution Method FSC 0.143 CUT-OFF
Other Details The overall resolution estimated by CryoSPARC was 3.51A according to the gold standard Fourier shell correlation cutoff at 0.143. The final map was sharpened by using DeepEMhancer
Refinement Type
Symmetry Type HELICAL
Map-Model Fitting and Refinement
ID 1
Refinement Space ?
Refinement Protocol FLEXIBLE FIT
Refinement Target ?
Overall B Value 50
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 (6k x 4k)
Electron Dose (electrons/Å2) 63
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 500
Maximum Defocus (nm) 1500
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
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
IMAGE ACQUISITION EPU v2.7
CTF CORRECTION cryoSPARC 4.1
MODEL FITTING UCSF ChimeraX 1.8
INITIAL EULER ASSIGNMENT cryoSPARC 4.1
FINAL EULER ASSIGNMENT cryoSPARC 4.1
CLASSIFICATION cryoSPARC 4.1
RECONSTRUCTION cryoSPARC 4.1
MODEL REFINEMENT PHENIX 1.20
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?