ELECTRON MICROSCOPY

Sample

H3.V-H4.V variant nucleosome core particle from Trypanosoma brucei reconstituted with Widom 601 145 bp DNA

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 362400
Reported Resolution (Å) 3.21
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 ?
Refinement Target ?
Overall B Value 116
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 54.5
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS KRIOS
Minimum Defocus (nm) 1500
Maximum Defocus (nm) 3300
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 83000
Calibrated Magnification 83000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 4.6.2
IMAGE ACQUISITION EPU ?
CTF CORRECTION cryoSPARC 4.6.2
MODEL FITTING UCSF ChimeraX 1.7.1
INITIAL EULER ASSIGNMENT cryoSPARC 4.6.2
FINAL EULER ASSIGNMENT cryoSPARC 4.6.2
CLASSIFICATION cryoSPARC 4.6.2
RECONSTRUCTION cryoSPARC 4.6.2
MODEL REFINEMENT PHENIX 1.21.1
MODEL REFINEMENT Coot 0.9.8.7
MODEL REFINEMENT ISOLDE 1.7.1
MODEL REFINEMENT UCSF ChimeraX 1.7.1
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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