ELECTRON MICROSCOPY

Sample

Heterodimer of Cre recombinase mutants D33A/A36V/R192A and R72E/L115D/R119D in complex with loxP DNA

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE-PROPANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 256734
Reported Resolution (Å) 4.48
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 150.3
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 60
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS KRIOS
Minimum Defocus (nm) 1000
Maximum Defocus (nm) 3000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 81000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Topaz ?
PARTICLE SELECTION cryoSPARC 3.0.1
IMAGE ACQUISITION EPU 2.7
CTF CORRECTION cryoSPARC 3.0.1
MODEL FITTING ISOLDE 1.2
INITIAL EULER ASSIGNMENT cryoSPARC 3.0.1
FINAL EULER ASSIGNMENT cryoSPARC 3.0.1
RECONSTRUCTION cryoSPARC 3.0.1
MODEL REFINEMENT PHENIX 1.19
MODEL REFINEMENT Coot 0.9.4.1
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?