ELECTRON MICROSCOPY

Sample

Nucleosome-Chd1 complex

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details Vitrified carried out in climate chamber with 100% humidity
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 110000
Reported Resolution (Å) 3.8
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 cross-correlation
Overall B Value 180
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 46
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS KRIOS
Minimum Defocus (nm) 1800
Maximum Defocus (nm) 3200
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.7
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 81000
Calibrated Magnification 81000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 4.17
IMAGE ACQUISITION EPU 2.8.1
CTF CORRECTION cryoSPARC 4.5.3
MODEL FITTING PHENIX 1.21_5207
MODEL REFINEMENT PHENIX 1.21_5207
INITIAL EULER ASSIGNMENT cryoSPARC 4.5.3
FINAL EULER ASSIGNMENT cryoSPARC 4.5.3
CLASSIFICATION cryoSPARC 4.5.3
RECONSTRUCTION cryoSPARC 4.5.3
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING ONLY ?
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