ELECTRON MICROSCOPY

Sample

BG505 MD64 N332-GT5 SOSIP trimer in complex with BG18-like precursor HMP42 fragment antigen binding and base-binding 8D11 fragment antigen binding

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 154118
Reported Resolution (Å) 3.43
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 50
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 400
Maximum Defocus (nm) 2500
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 29000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION DoG Picker ?
IMAGE ACQUISITION Leginon ?
CTF CORRECTION Gctf ?
MODEL FITTING UCSF Chimera ?
INITIAL EULER ASSIGNMENT cryoSPARC ?
FINAL EULER ASSIGNMENT RELION 3.0
CLASSIFICATION RELION 3.0
RECONSTRUCTION RELION 3.0
MODEL REFINEMENT Rosetta 3.10
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?