ELECTRON MICROSCOPY

Sample

Bacterial nitrilase filament with covalent adduct derived from benzonitrile hydrolysis.

Specimen Preperation
Sample Aggregation State HELICAL ARRAY
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details Grids were glow-discharged for 60 sec before deposition of 3 ul sample, blotted for 4 s, and vitrified by plunging into liquid ethane and stored in a cryobox in liquid nitrogen.
3D Reconstruction
Reconstruction Method HELICAL
Number of Particles 56369
Reported Resolution (Å) 3.01
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type HELICAL
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol BACKBONE TRACE
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON III (4k x 4k)
Electron Dose (electrons/Å2) 1.0
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 500
Maximum Defocus (nm) 5000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 75000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION RELION 3.0.8
CTF CORRECTION Gctf ?
MODEL FITTING Coot 0.9.8.7
MODEL REFINEMENT REFMAC 5
MODEL FITTING Coot 0.9.8.7
MODEL FITTING ISOLDE ?
MODEL REFINEMENT PHENIX 1.19.2
INITIAL EULER ASSIGNMENT RELION 3.0.8
FINAL EULER ASSIGNMENT RELION 3.0.8
RECONSTRUCTION RELION 3.0.8
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
NONE ?