ELECTRON MICROSCOPY

Sample

Type IG cascade core cas7 with CrRNA

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details blot time 3.5 blot force 4
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 415000
Reported Resolution (Å) 3.2
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 AB INITIO MODEL
Refinement Target correlation coefficient
Overall B Value 188
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 50
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1600
Maximum Defocus (nm) 2800
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.0
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 105000
Calibrated Magnification 105000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION EPU ?
CTF CORRECTION CTFFIND 4
MODEL FITTING Coot ?
MODEL FITTING ISOLDE ?
MODEL FITTING UCSF ChimeraX ?
INITIAL EULER ASSIGNMENT RELION 4
FINAL EULER ASSIGNMENT RELION 4
CLASSIFICATION RELION 4
RECONSTRUCTION RELION 4
MODEL REFINEMENT PHENIX 1.20
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING ONLY ?