ELECTRON MICROSCOPY

Sample

Adeno-associated virus - 2

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument HOMEMADE PLUNGER
Cryogen Name ETHANE
Sample Vitrification Details Double blotting was used to increase particle concentration. Sample was added to a plasma-cleaned (Gatan Solarus) grid and blotted away using Whatman grade 4 filter paper after 20 second wait time.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 30515
Reported Resolution (Å) 1.86
Resolution Method FSC 0.143 CUT-OFF
Other Details Frequency limited refinement
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol RIGID BODY FIT
Refinement Target Correlation coefficient, EM ringer score
Overall B Value 61.9
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 22.5
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 600
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 37000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details Beam tilt in 8 directions +/- 5 mrad
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Gautomatch 0.56
IMAGE ACQUISITION Leginon ?
CTF CORRECTION RELION 2.1
MODEL FITTING Coot 0.8.9.1
MODEL REFINEMENT PHENIX 1.13
INITIAL EULER ASSIGNMENT cryoSPARC 0.65
FINAL EULER ASSIGNMENT FREALIGN 9.11
CLASSIFICATION FREALIGN 9.11
RECONSTRUCTION FREALIGN 9.11
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION CTF estimation per particle - Gctf, CTF estimation per micrograph - CTFFIND4
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