ELECTRON MICROSCOPY

Sample

Type III-B Cmr-beta ternary complex, cognate target RNA and AMPPnP bound, in the presence of ssDNA

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details 3-4 s blotting before plunging
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 50409
Reported Resolution (Å) 3.14
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 AB INITIO MODEL
Refinement Target Cross-correlation coefficient
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON III (4k x 4k)
Electron Dose (electrons/Å2) 41
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1700
Maximum Defocus (nm) 2600
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.1
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 96000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION EPU ?
CTF CORRECTION Gctf 1.06
MODEL FITTING UCSF Chimera ?
MODEL FITTING Coot ?
MODEL FITTING PHENIX ?
MODEL REFINEMENT PHENIX ?
INITIAL EULER ASSIGNMENT RELION 3.0
FINAL EULER ASSIGNMENT cisTEM 1.0
CLASSIFICATION cisTEM 1.0
RECONSTRUCTION cisTEM 1.0
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?