ELECTRON MICROSCOPY

Sample

RNA Polymerase I Initial Transcribing Complex State 2

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument ?
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 38340
Reported Resolution (Å) 4.3
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 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 56.8
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 2.7
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 22500
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
IMAGE ACQUISITION Leginon 3.1
CTF CORRECTION Gctf 0.5
MODEL FITTING NAMD 2.8
MODEL FITTING UCSF Chimera 1.11.2
MODEL REFINEMENT Coot 0.8.8
MODEL REFINEMENT PHENIX 1.10.1
INITIAL EULER ASSIGNMENT RELION 2.0
FINAL EULER ASSIGNMENT RELION 2.0
CLASSIFICATION RELION 2.0
RECONSTRUCTION RELION 2.0
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING ONLY CTF amplitude correction was performed following 3D auto refinement in relion.