7K7H

ELECTRON MICROSCOPY

Sample

Complex of TyTx1 Fab with Typhoid toxin

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details blot for 2.5 second before plunging
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 326766
Reported Resolution (Å) 3.0
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space ?
Refinement Protocol ?
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details Initial local fitting was done using Chimera and then Coot was used for rebuilding Fab variable domains into correct sequences. Refinement was performed using Real Space Refine in PHENIX and was iterated with manual building in Coot.
Data Acquisition
Detector Type GATAN K3 (6k x 4k)
Electron Dose (electrons/Å2) 53
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TALOS ARCTICA
Minimum Defocus (nm) 800
Maximum Defocus (nm) 1500
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.7
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification 49000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION SerialEM ?
CTF CORRECTION Gctf ?
MODEL FITTING Coot 0.8.9.1
MODEL REFINEMENT PHENIX 1.16-3549
RECONSTRUCTION RELION 3
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?