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Influenza A virus (A/NT/60/1968) polymerase dimer of hetermotrimer in complex with 3'5' cRNA promoter and Nb8205
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6QX8 experimental model PDB 6QPG
Sample Influenza A virus (A/NT/60/1968) polymerase dimer of hetermotrimer in complex with 3'5' cRNA promoter and Nb8205 Sample Components Influenza A virus (A/NT/60/1968) polymerase dimer of hetermotrimer in complex with 3'5' cRNA promoter and Nb8205 Influenza A virus (A/NT/60/1968) polymerase dimer of hetermotrimer in complex with 3'5' cRNA promoter and Nb8205
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details blot for 3.5 sec before plunging
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 27861 Reported Resolution (Å) 4.15 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (6QX8, 6QX8, 6QX8, 6QX8, 6QPG, 6QPG) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value 95 Fitting Procedure Details Rigid body fit only
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 1.25
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 500 Maximum Defocus (nm) 700 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 130000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 2.5 IMAGE ACQUISITION EPU CTF CORRECTION Gctf 1.18 MODEL FITTING UCSF Chimera 1.13 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 406945 template picking in cryosparc v2.5