ELECTRON MICROSCOPY

Sample

Activated Leptotrichia buccalis (Lbu) CRISPR-Cas13a bound to AI-designed anti-CRISPR AIcrVIA1

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 20357
Reported Resolution (Å) 3.43
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 RIGID BODY FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 50
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TALOS ARCTICA
Minimum Defocus (nm) 800
Maximum Defocus (nm) 1400
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.7
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification ?
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Topaz 0.2.5
IMAGE ACQUISITION EPU ?
CTF CORRECTION cryoSPARC 4.5.2
MODEL FITTING UCSF ChimeraX ?
INITIAL EULER ASSIGNMENT cryoSPARC 4.5.2
FINAL EULER ASSIGNMENT cryoSPARC 4.5.2
CLASSIFICATION cryoSPARC 4.5.2
RECONSTRUCTION Coot 0.9.4
RECONSTRUCTION PHENIX 1.18.2
MODEL REFINEMENT PHENIX 1.18.2
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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