ELECTRON MICROSCOPY

Sample

Autographa californica multiple nucleopolyhedrovirus

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details Grid was blotted using zero incubation time, blot time of 2 s, blot force of -10 and drain time of 1 s.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 1002951
Reported Resolution (Å) 3.06
Resolution Method FSC 0.143 CUT-OFF
Other Details Final reconstruction was generated using local refinement in cryoSPARC.
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 ChimeraX was used to perform rigid-body fitting of an AlphaFold2 model. Flexible modeling was performed using Coot and refined in Phenix.
Data Acquisition
Detector Type GATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å2) 47.3
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 400
Maximum Defocus (nm) 1200
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 ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 4.1.2
PARTICLE SELECTION EMAN2 2.2
PARTICLE SELECTION RELION 2.1
IMAGE ACQUISITION EPU 1
CTF CORRECTION cryoSPARC 4.1.2
MODEL FITTING UCSF ChimeraX 1.5
MODEL FITTING Coot 0.9.8.6
MODEL REFINEMENT PHENIX 1.20.1_4487
INITIAL EULER ASSIGNMENT SPRING 0.84.1470
INITIAL EULER ASSIGNMENT RELION 2.1
FINAL EULER ASSIGNMENT cryoSPARC 4.1.2
CLASSIFICATION cryoSPARC 4.1.2
RECONSTRUCTION cryoSPARC 4.1.2
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
NONE Defocus values were estimated using patch CTF estimation, and CTF correction was performed during 3D reconstruction
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