ELECTRON MICROSCOPY

Sample

Ebola GP trimer. Furin Cleaved to form GP1 and GP2 subunits, T4 foldon attached to stabilize soluble trimer

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 189700
Reported Resolution (Å) 3.05
Resolution Method FSC 0.143 CUT-OFF
Other Details Non Uniform Refinement
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target Cross-correlation coefficient
Overall B Value ?
Fitting Procedure ?
Details Crystal Structure 5JQ3 was used as a starting model and fit with Chimera. Structure was further refined in Coot, Phenix, ChimeraX, Isolde
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 56.69
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS KRIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 1800
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 ?
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC ?
IMAGE ACQUISITION Leginon ?
CTF CORRECTION cryoSPARC ?
MODEL FITTING UCSF Chimera ?
INITIAL EULER ASSIGNMENT cryoSPARC ?
FINAL EULER ASSIGNMENT cryoSPARC ?
CLASSIFICATION cryoSPARC ?
RECONSTRUCTION cryoSPARC ?
MODEL REFINEMENT PHENIX 1.21.1_5286
MODEL REFINEMENT Coot ?
MODEL REFINEMENT UCSF ChimeraX ?
MODEL REFINEMENT ISOLDE ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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