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Cryo-EM consensus structure of Escherichia coli que-PEC (paused elongation complex) RNA Polymerase minus preQ1 ligand
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6ALF
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.284 f_angle_d 0.577 f_chiral_restr 0.043 f_plane_restr 0.005 f_bond_d 0.003
Sample Cryo-EM consensus structure of Escherichia coli que-PEC (paused elongation complex) RNA Polymerase minus preQ1 ligand
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details VITRIFICATION WAS CARRIED OUT
IN A CHAMBER WITH THE
TEMPERATURE SET TO 4 DEGREES ... VITRIFICATION WAS CARRIED OUT
IN A CHAMBER WITH THE
TEMPERATURE SET TO 4 DEGREES
CELSIUS.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 142410 Reported Resolution (Å) 3.4 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (6ALF) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Cross-correlation coefficient Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 62
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 500 Maximum Defocus (nm) 3500 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 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 299640