ELECTRON MICROSCOPY

Sample

Nucleosome containing a 1-nt gap at SHL-5.5

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 7167
Reported Resolution (Å) 4.2
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 ?
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å2) 50
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS KRIOS
Minimum Defocus (nm) 500
Maximum Defocus (nm) 2500
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification ?
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details 300 kV FEI Titan Krios G3i cryo-TEM equipped with a Falcon 4 direct electron detector and Selectris energy filter
Imaging Experiment
Task Software Package Version
CTF CORRECTION cryoSPARC v3.3.1
MODEL REFINEMENT PHENIX ?
INITIAL EULER ASSIGNMENT cryoSPARC v3.3.1
FINAL EULER ASSIGNMENT cryoSPARC v3.3.1
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?