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Cryo-EM structure of the TMEM16A calcium-activated chloride channel in nanodisc
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 5.249 f_angle_d 0.973 f_chiral_restr 0.05 f_bond_d 0.01 f_plane_restr 0.007
Sample TMEM16A in Nanodsic
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK III Cryogen Name ETHANE Sample Vitrification Details blot 6-8 seconds before plunging
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 251851 Reported Resolution (Å) 3.8 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 Refinement Space REAL 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) 80
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) Maximum Defocus (nm) 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 29000 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION Gautomatch 0.56 IMAGE ACQUISITION SerialEM 3.7beta CTF CORRECTION Gctf 0.1.06 MODEL FITTING UCSF Chimera 1.11.2 INITIAL EULER ASSIGNMENT RELION 2.1beta1 FINAL EULER ASSIGNMENT RELION 2.1beta1 CLASSIFICATION RELION 2.1beta1 RECONSTRUCTION RELION 2.1beta1 MODEL REFINEMENT PHENIX 1.10.1 MODEL REFINEMENT REFMAC 5
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE 927414