ELECTRON MICROSCOPY

Sample

26S proteasome

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument HOMEMADE PLUNGER
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 2464694
Reported Resolution (Å) 7.4
Resolution Method FSC 0.5 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 Cross-correlation coefficient
Overall B Value ?
Fitting Procedure ?
Details METHOD--Hybrid method + flexible fitting REFINEMENT PROTOCOL--Hybrid method DETAILS--Initial model was done with an in house hybrid method (EMTEGRATOR) that integrates topology constraints with EM-map derived constraints. iMODFIT was then used for final flexible fitting.
Data Acquisition
Detector Type TVIPS TEMCAM-F816 (8k x 8k)
Electron Dose (electrons/Å2) 25
Imaging Experiment
Date of Experiment 2012-03-15
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1500
Maximum Defocus (nm) 3500
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model ?
Nominal Magnification 150000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
MODEL FITTING EMTEGRATOR ?
MODEL FITTING iMODFIT ?
MODEL FITTING VOLTRAC ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details