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Structure of the Human Metapneumovirus Polymerase bound to the phosphoprotein tetramer
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 6.964 f_angle_d 0.717 f_chiral_restr 0.045 f_plane_restr 0.005 f_bond_d 0.004
Sample Human metapneumovirus CAN97-83
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details 3.5 uL sample (0.8 mg/mL)/grid, 4-second blotting (double-sided) at offset -2 before plunging.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 302346 Reported Resolution (Å) 3.7 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 Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 1.2
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI POLARA 300 Minimum Defocus (nm) 1500 Maximum Defocus (nm) 3000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.26 Imaging Mode BRIGHT FIELD Specimen Holder Model OTHER Nominal Magnification 31000 Calibrated Magnification 40323 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details preliminary grid screening was performed manually on a FEI Tecnai F20 microscope equipped with a Gatan K2 summit camera.
EM Software Task Software Package Version IMAGE ACQUISITION SerialEM 3.7.1 CTF CORRECTION CTFFIND 4.1.9 MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT RELION 3.0.3 FINAL EULER ASSIGNMENT RELION 3.0.4 CLASSIFICATION RELION 3.0.4 RECONSTRUCTION RELION 3.0.4
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE 5381943