ELECTRON MICROSCOPY

Sample

SpCas9-sgRNA-target DNA complex

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details blot for 4 seconds before pluging
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 57484
Reported Resolution (Å) 5.2
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 Correlation coefficient
Overall B Value 80
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 10
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1300
Maximum Defocus (nm) ?
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification ?
Calibrated Magnification 18000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION RELION 1.3
IMAGE ACQUISITION RELION 1.3
CTF CORRECTION CTFFIND3 3.0
MODEL FITTING NAMD 2.10
MODEL REFINEMENT Rosetta 3.5
INITIAL EULER ASSIGNMENT RELION 1.3
FINAL EULER ASSIGNMENT RELION 1.3
CLASSIFICATION RELION 1.3
RECONSTRUCTION RELION 1.3
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING ONLY ?