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1918 Influenza virus polymerase heterotirmer in complex with vRNA promoters and Nb8201
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7HNA
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 13.5551 f_angle_d 0.6891 f_chiral_restr 0.0434 f_plane_restr 0.0052 f_bond_d 0.004
Sample 1918 Influenza virus polymerase heterotirmer in complex with vRNA promoters and Nb8201 Sample Components Polymerase acidic protein RNA-directed RNA polymerase catalytic subunit Polymerase basic protein 2 RNA Nanobody8201
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 45716 Reported Resolution (Å) 4.22 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7HNA) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 31
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 2.15 IMAGE ACQUISITION EPU CTF CORRECTION cryoSPARC 2.15 MODEL FITTING UCSF Chimera 1.19 INITIAL EULER ASSIGNMENT cryoSPARC 2.15 FINAL EULER ASSIGNMENT cryoSPARC 2.15 CLASSIFICATION cryoSPARC 2.15 RECONSTRUCTION cryoSPARC 2.15
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1790000