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Cryo-EM structure of the human PKR dimer with mitapivat (focused refinement, asymmetric dual-bound state)
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 8.577 f_angle_d 0.745 f_chiral_restr 0.044 f_plane_restr 0.005 f_bond_d 0.003
Sample Cryo-EM structure of the human pyruvate kinase R (PKR) dimer with mitapivat (focused refinement, asymmetric dual-bound state)
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 255694 Reported Resolution (Å) 2.93 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol AB INITIO MODEL Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 QUANTUM (4k x 4k) Electron Dose (electrons/Å**2) 56.1
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI POLARA 300 Minimum Defocus (nm) 800 Maximum Defocus (nm) 2100 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 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 4.4.1 MODEL REFINEMENT PHENIX 1.20.1_4487 RECONSTRUCTION cryoSPARC 4.4.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION