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Cryo-EM Structure of Ca2+-bound mTMEM16F F518A_Q623A mutant in GDN
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 10.473 f_angle_d 0.409 f_chiral_restr 0.036 f_plane_restr 0.004 f_bond_d 0.002
Sample Homodimeric mTMEM16F F518A Q623A mutant bound to Ca2+
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE-PROPANE Sample Vitrification Details 2mM free Ca2+ added shortly before freezing
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 183302 Reported Resolution (Å) 2.93 Resolution Method FSC 0.143 CUT-OFF Other Details The map was masked for calculation the final resolution (cryoSPARC auto-masking) Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol Refinement Target Overall B Value 73.9 Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 59.46
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2400 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 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL FITTING Coot MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION