ELECTRON MICROSCOPY

Sample

transcription complex paused at ops site, assembled on a fully complementary nucleic acid scaffold, bound to RfaH and NusA

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 41797
Reported Resolution (Å) 3.2
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 121
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON III (4k x 4k)
Electron Dose (electrons/Å2) 42
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 2000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
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
PARTICLE SELECTION cryoSPARC 3.2.0
IMAGE ACQUISITION EPU 2.8
CTF CORRECTION cryoSPARC 3.2.0
MODEL FITTING Coot 0.9.8.1
INITIAL EULER ASSIGNMENT cryoSPARC 3.2.0
FINAL EULER ASSIGNMENT cryoSPARC 3.2.0
CLASSIFICATION cryoSPARC 3.2.0
RECONSTRUCTION cryoSPARC 3.2.0
MODEL REFINEMENT PHENIX 1.20_44591
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?