ELECTRON MICROSCOPY

Sample

Tetrahedral complex of DNA Gyrase A subunit N-terminal fragment, solved by cryoEM in T symmetry

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 673694
Reported Resolution (Å) 4
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 ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 74
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1000
Maximum Defocus (nm) 3500
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 130000
Calibrated Magnification 46430
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION RELION 2.1
IMAGE ACQUISITION EPU ?
CTF CORRECTION CTFFIND 4.1
MODEL FITTING MDFF 0.4
INITIAL EULER ASSIGNMENT IMAGIC ?
FINAL EULER ASSIGNMENT RELION 2.1
CLASSIFICATION RELION 2.1
RECONSTRUCTION RELION 2.1
MODEL REFINEMENT REFMAC 5
MODEL REFINEMENT PHENIX 1.12-2829
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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