ELECTRON MICROSCOPY

Sample

126 helix bundle DNA nanostructure

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 122493
Reported Resolution (Å) 9.8
Resolution Method FSC 0.143 CUT-OFF
Other Details Resolution of bodies (1-6) from multibody refinement: 8.9, 9.7, 8.9, 8.9, 8.2, 8.2 -> composite map: 8.8 A
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) 50
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) ?
Maximum Defocus (nm) ?
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 0.01
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 47000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details CEOS Cs corrector
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION EPU ?
CTF CORRECTION CTFFIND 4.1
CLASSIFICATION RELION 2
CLASSIFICATION RELION 3
RECONSTRUCTION RELION 3
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?