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Cryo-EM structure of Ca2+-bound mTMEM16F N562A mutant in Digitonin open/closed
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6QP6
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 12.083 f_angle_d 0.498 f_chiral_restr 0.039 f_plane_restr 0.005 f_bond_d 0.003
Sample mTMEM16F N562A mutant
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 124276 Reported Resolution (Å) 3.49 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (6QP6) Refinement Space REAL Refinement Protocol Refinement Target Overall B Value 78.5 Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 62.4
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 Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EPU 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