ELECTRON MICROSCOPY

Sample

PTC3 holotoxin complex in prepore state (5 x TcdA1, 1 x TcdB2, 1 x TccC3)

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument GATAN CRYOPLUNGE 3
Cryogen Name ETHANE
Sample Vitrification Details blot 3 sec before plunging
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 89148
Reported Resolution (Å) 3.95
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 OTHER
Refinement Target Model to Map FSC
Overall B Value 68.03
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å2) 2.2
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) ?
Maximum Defocus (nm) ?
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification ?
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION EMAN2 ?
IMAGE ACQUISITION EPU ?
CTF CORRECTION SPHIRE ?
MODEL FITTING UCSF Chimera 1.12
MODEL FITTING Rosetta ?
INITIAL EULER ASSIGNMENT SPHIRE ?
FINAL EULER ASSIGNMENT SPHIRE ?
CLASSIFICATION SPHIRE ?
RECONSTRUCTION SPHIRE ?
MODEL REFINEMENT Rosetta ?
MODEL REFINEMENT NAMD 2.12
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?