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Cryo EM map and model of the vaccinia RNA polymerase intermediate pre-initiation open promoter complex shallow conformation
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 12.905 f_angle_d 0.482 f_chiral_restr 0.041 f_bond_d 0.003 f_plane_restr 0.003
Sample Vaccinia DNA-directed RNA polymerase open promoter intermediate pre-initiation complex
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 1395666 Reported Resolution (Å) 2.58 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON III (4k x 4k) Electron Dose (electrons/Å**2) 70
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1200 Maximum Defocus (nm) 2200 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 4.1 CTF CORRECTION cryoSPARC 4.1 MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT cryoSPARC 4.1 RECONSTRUCTION cryoSPARC 4.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 9318600