ELECTRON MICROSCOPY

Sample

Human immunodeficiency virus 1

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK II
Cryogen Name ETHANE
Sample Vitrification Details 10nM colloidal gold was added to the sample prior to plunge freezing.
3D Reconstruction
Reconstruction Method SUBTOMOGRAM AVERAGING
Number of Particles 128733
Reported Resolution (Å) 3.9
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space ?
Refinement Protocol OTHER
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å2) 3.4
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1500
Maximum Defocus (nm) 5000
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 105000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details Nanoprobe
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION SerialEM ?
CTF CORRECTION CTFFIND 4
CTF CORRECTION CTFPHASEFLIP ?
MODEL FITTING UCSF Chimera ?
MODEL REFINEMENT CCP4 package ?
MODEL REFINEMENT PHENIX ?
MODEL REFINEMENT Coot 0.8.1
FINAL EULER ASSIGNMENT AV3 ?
FINAL EULER ASSIGNMENT TOM Toolbox ?
RECONSTRUCTION AV3 ?
RECONSTRUCTION TOM Toolbox ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING ONLY CTF correction was performed using the ctfphaseflip program in IMOD prior to backprojection.
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