ELECTRON MICROSCOPY

Sample

Cryo-EM Structure of Sulfolobus solfataricus ketol-acid reductoisomerase (Sso-KARI) dodecamer in complex with Mg2+, NADH, and CPD at pH7.5

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 18522
Reported Resolution (Å) 3.38
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 RIGID BODY FIT
Refinement Target ?
Overall B Value 117.95
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å2) 1.31
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TALOS ARCTICA
Minimum Defocus (nm) ?
Maximum Defocus (nm) ?
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) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cisTEM 1.0.0-beta
CTF CORRECTION cisTEM 1.0.0-beta
MODEL FITTING UCSF Chimera 1.13.1
MODEL FITTING Coot 0.8.9.1
MODEL REFINEMENT PHENIX dev-3339
INITIAL EULER ASSIGNMENT cisTEM 1.0.0-beta
FINAL EULER ASSIGNMENT cisTEM 1.0.0-beta
CLASSIFICATION cisTEM 1.0.0-beta
RECONSTRUCTION cisTEM 1.0.0-beta
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING ONLY ?