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fully recruited RfaH bound to E. coli transcription complex paused at ops site (not complementary scaffold)
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.955 f_angle_d 0.657 f_chiral_restr 0.04 f_bond_d 0.007 f_plane_restr 0.004
Sample transcription complex paused at ops site, assembled on not completely complementary scaffold, bound to RfaH Sample Components Transcription antitermination protein RfaH and DNA-directed RNA polymerase subunits RNA and DNA
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 51791 Reported Resolution (Å) 3.4 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value 153 Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON III (4k x 4k) Electron Dose (electrons/Å**2) 42
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 2000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 96000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 3.2.0 IMAGE ACQUISITION EPU 2.8 CTF CORRECTION cryoSPARC 3.2.0 MODEL FITTING Coot 0.9.8.1 MODEL REFINEMENT PHENIX 1.20_44591 INITIAL EULER ASSIGNMENT cryoSPARC 3.2.0 FINAL EULER ASSIGNMENT cryoSPARC 3.2.0 CLASSIFICATION cryoSPARC 3.2.0 RECONSTRUCTION cryoSPARC 3.2.0
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 849514