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Structure of the apo-state of the bacteriophage PhiKZ non-virion RNA polymerase
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6EDT
Sample Bacteriophage PhiKZ non-virion RNA polymerase Sample Components Bacteriophage PhiKZ non-virion RNA polymerase Bacteriophage PhiKZ non-virion RNA polymerase Bacteriophage PhiKZ non-virion RNA polymerase
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details 1-2 s blot
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 855016 Reported Resolution (Å) 3 Resolution Method FSC 0.143 CUT-OFF Other Details RELION 3.0 Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (6EDT) Refinement Space Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details Core conserved regions initially identified from comparison with PDB 6EDT - remainder built de novo
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 40
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 750 Maximum Defocus (nm) 3250 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 48000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EPU CTF CORRECTION CTFFIND 4 MODEL FITTING Coot MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT RELION 3 FINAL EULER ASSIGNMENT RELION 3 CLASSIFICATION RELION 3 RECONSTRUCTION RELION 3
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION During reconstruction in RELION 3179799 EMAN BATCHBOXER with low-pass butterworth preprocessing