ELECTRON MICROSCOPY

Sample

Cas1-Cas2 CRISPR integrase bound to prespacer and target DNA, Streptococcus thermophilus DGCC 7710 CRISPR3 system

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 82944
Reported Resolution (Å) 2.98
Resolution Method FSC 0.143 CUT-OFF
Other Details Non-uniform refinement in cryoSPARC
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space ?
Refinement Protocol ?
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON III (4k x 4k)
Electron Dose (electrons/Å2) 29.7
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS GLACIOS
Minimum Defocus (nm) 1000
Maximum Defocus (nm) 2000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.7
Imaging Mode OTHER
Specimen Holder Model ?
Nominal Magnification 92000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 4.2.1+230427
IMAGE ACQUISITION EPU 3.2
MODEL FITTING UCSF ChimeraX 1.5
MODEL FITTING Coot 0.9.8.1
RECONSTRUCTION cryoSPARC 4.2.1+230427
MODEL REFINEMENT PHENIX 1.21rc1_4903
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
NONE ?
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