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Human TRPM4 ion channel in lipid nanodiscs in a calcium-free state
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 13.538 f_angle_d 1.109 f_chiral_restr 0.054 f_plane_restr 0.008 f_bond_d 0.007
Sample Human TRPM4 ion channel
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 47242 Reported Resolution (Å) 3.2 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C4
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 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 54
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 500 Maximum Defocus (nm) 1500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 22500 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION SerialEM CTF CORRECTION Gctf MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT cryoSPARC FINAL EULER ASSIGNMENT RELION CLASSIFICATION RELION RECONSTRUCTION RELION 2.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 528648 Automatic picking