ELECTRON MICROSCOPY Experimental Data



EM Sample
Sample Vitrification Details 30 sec wait time, 2.5 sec blot time
Sample Aggregation State PARTICLE
Sample Reconstruction Method SINGLE PARTICLE
Name of Sample Human nuclear exosome-MTR4 helicase captured after unwinding a DNA/RNA substrate
EM Data Acquisition
Date of Experiment --
Temperature (Kelvin) --
Microscope Model FEI TITAN KRIOS
Detector Type GATAN K2 SUMMIT (4k x 4k)
Minimum Defocus (nm) --
Maximum Defocus (nm) --
Minimum Tilt Angle (degrees) --
Maximum Tilt Angle (degrees) --
Nominal CS --
Imaging Mode BRIGHT FIELD
Electron Dose (electrons per Å**-2) 85.23
Illumination Mode FLOOD BEAM
Nominal Magnification --
Calibrated Magnification --
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details --
3D Reconstruction
Software Package(s) RELION
Reconstruction Method(s) --
EM Image Reconstruction Statistics
Number of Particles 122703
Other Details Focused refinements with five strategies required to achieve final model
Effective Resolution 3.45
EM Map-Model Fitting and Refinement
Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Fitting Software
REAL BACKBONE TRACE Correlation coefficient 73.6 -- --