ELECTRON MICROSCOPY

Sample

Formate dehydrogenase from Methylobacterium extorquens AM1 (MeFDH1)

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details Blot time was for 4 seconds with 0 blot force before plunging.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 260910
Reported Resolution (Å) 3.6
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 A initial model was from SWISS modeling using 6TGA as a template. Initial local fitting was done using Chimera and then ISOLDE plugged in ChimeraX for flexible fitting. The model was refined by using Phenix and Coot.
Data Acquisition
Detector Type GATAN K3 (6k x 4k)
Electron Dose (electrons/Å2) 50
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TALOS ARCTICA
Minimum Defocus (nm) 1200
Maximum Defocus (nm) 2100
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 100000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION EPU ?
MODEL FITTING ISOLDE 1.0.1
MODEL FITTING UCSF Chimera 1.13.1
INITIAL EULER ASSIGNMENT cryoSPARC 2.15.0
FINAL EULER ASSIGNMENT cryoSPARC 2.15.0
RECONSTRUCTION cryoSPARC 2.15.0
MODEL REFINEMENT PHENIX 1.19.1
MODEL REFINEMENT Coot 0.8.9.2
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
NONE ?
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