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E2 Refolding into Soluble Protein after Dissociation from Viral Membrane and E1 during Sindbis Virus Fusion
ELECTRON MICROSCOPY
Refinement
RMS Deviations
Key
Refinement Restraint Deviation
f_dihedral_angle_d
5.9449
f_angle_d
0.7618
f_chiral_restr
0.0458
f_plane_restr
0.0071
f_bond_d
0.0032
Sample
Sindbis virus TE12 strain E2 homotrimer
Specimen Preparation
Sample Aggregation State
PARTICLE
Vitrification Instrument
FEI VITROBOT MARK III
Cryogen Name
ETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
339663
Reported Resolution (Å)
3.87
Resolution Method
FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type
POINT
Point Symmetry
C3
Map-Model Fitting and Refinement
Id
1
Refinement Space
REAL
Refinement Protocol
AB INITIO MODEL
Refinement Target
Overall B Value
Fitting Procedure
Details
The model underwent cycles of refinement using a combination of Rosetta, Refmac_Servalcat, and Phenix. Final refinement and validation was performed w ...
The model underwent cycles of refinement using a combination of Rosetta, Refmac_Servalcat, and Phenix. Final refinement and validation was performed with Phenix.
Data Acquisition
Detector Type
GATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å**2)
1.0178
Imaging Experiment
1
Date of Experiment
Temperature (Kelvin)
Microscope Model
TFS KRIOS
Minimum Defocus (nm)
1000
Maximum Defocus (nm)
2000
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
EM Software
Task
Software Package
Version
PARTICLE SELECTION
RELION
IMAGE ACQUISITION
SerialEM
CTF CORRECTION
cryoSPARC
INITIAL EULER ASSIGNMENT
cryoSPARC
CLASSIFICATION
cryoSPARC
RECONSTRUCTION
cryoSPARC
MODEL REFINEMENT
PHENIX
1.21.2_5419+SVN
Image Processing
CTF Correction Type
CTF Correction Details
Number of Particles Selected
Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION
cryosparc patch CTF correction
617859
181,852 particles were picked from non-tilt data; 218704 particles were picked from 30 degree tilt data; 46113 particles were picked from 60 degree data; 171186 particles were picked from 45 degree tilt data.