ELECTRON MICROSCOPY

Sample

BG505 SOSIP.v5.2(7S) in complex with the polyclonal Fab pAbC-1 from animal Rh.33172 (Wk38 time point)

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details Blotting time varied between 3 and 7 seconds.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 31914
Reported Resolution (Å) 4.2
Resolution Method FSC 0.143 CUT-OFF
Other Details 31914 symmetry-expanded particles. For details see the Methods section in the paper.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol RIGID BODY FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 50.7
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 600
Maximum Defocus (nm) 1600
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.7
Imaging Mode BRIGHT FIELD
Specimen Holder Model OTHER
Nominal Magnification 29000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 2
IMAGE ACQUISITION Leginon ?
CTF CORRECTION RELION 3.0
MODEL FITTING UCSF Chimera ?
MODEL REFINEMENT Coot ?
MODEL REFINEMENT RosettaEM ?
INITIAL EULER ASSIGNMENT RELION 3.0
FINAL EULER ASSIGNMENT RELION 3.0
CLASSIFICATION RELION 3.0
RECONSTRUCTION RELION 3.0
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?