ELECTRON MICROSCOPY

Sample

Escherichia coli beta-galactosidase bound to phenylethyl beta-D-thiogalactopyranoside (PETG)

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument LEICA EM GP
Cryogen Name ETHANE
Sample Vitrification Details Blot for 2 seconds before plunging.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 150321
Reported Resolution (Å) 1.9
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 ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å2) 45
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 600
Maximum Defocus (nm) ?
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 215000
Calibrated Magnification 215000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details Parallel beam illumination
Imaging Experiment
Task Software Package Version
CTF CORRECTION CTFFIND 4
MODEL FITTING UCSF Chimera ?
MODEL REFINEMENT PHENIX ?
FINAL EULER ASSIGNMENT FREALIGN 9.11
RECONSTRUCTION FREALIGN 9.11
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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