ELECTRON MICROSCOPY

Sample

AaaA complex with Arginine

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details During vitrification 3 ul of sample placed on a grid and then vitrified with 10s hold and 4s blot time.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 241938
Reported Resolution (Å) 3.87
Resolution Method FSC 0.143 CUT-OFF
Other Details Final map reconstructed from local refinement following non-uniform refinement to improve the region of interest excluding the detergent belt in cryoSPARC. Mask of the region of interest used to do the local refinement.
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å2) 44.71
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TALOS ARCTICA
Minimum Defocus (nm) 400
Maximum Defocus (nm) 1600
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 ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 4.4.1
PARTICLE SELECTION Topaz 2.4
IMAGE ACQUISITION EPU 3.8
CTF CORRECTION cryoSPARC 4.4.1
MODEL FITTING UCSF Chimera 1.17.3
INITIAL EULER ASSIGNMENT cryoSPARC 4.4.1
FINAL EULER ASSIGNMENT cryoSPARC 4.4.1
CLASSIFICATION RELION 4.0.1
RECONSTRUCTION cryoSPARC 4.4.1
MODEL REFINEMENT PHENIX 1.21.2-5419
MODEL REFINEMENT Coot 0.9.8.96
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION Patch CTF in CryoSPARC
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