7B3C

ELECTRON MICROSCOPY

Sample

SARS-CoV-2 RNA-dependent RNA polymerase complex (nsp12, nsp7, nsp8) with elongation scaffold containing remdesivir at position -4.

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 474061
Reported Resolution (Å) 3.4
Resolution Method FSC 0.143 CUT-OFF
Other Details M was used
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol OTHER
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 60
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 OTHER
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 105000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details 30 deg tilt.
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Warp 1.0.7
IMAGE ACQUISITION SerialEM 3.8
CTF CORRECTION Warp 1.0.7
MODEL FITTING Coot 0.9
MODEL REFINEMENT PHENIX 1.18
CLASSIFICATION cryoSPARC ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?