☰ Navigation Tabs
Structure of replicating SARS-CoV-2 polymerase
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6M71
Sample RNA-dependent RNA polymerase complex consisting of nsp12, nsp8, nsp7 and duplex RNA. Sample Components nsp12 duplex RNA nsp8, nsp7
Specimen Preparation 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 418000 Reported Resolution (Å) 2.9 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (6M71) Refinement Space REAL Refinement Protocol AB INITIO MODEL Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 60
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 500 Maximum Defocus (nm) 1500 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 105000 Calibrated Magnification 105000 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION SerialEM 3.8beta8 CTF CORRECTION Warp 1.07 BETA MODEL FITTING Coot 0.9 MODEL REFINEMENT PHENIX 1.18 INITIAL EULER ASSIGNMENT cryoSPARC 2.14.2 FINAL EULER ASSIGNMENT RELION 3.0.7 CLASSIFICATION RELION 3.0.7 RECONSTRUCTION RELION 3.0.7
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1300000