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Cryo-EM structure of nanodisc (PE:PS:PC) reconstituted GLIC at pH 4 in intermediate state
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.626 f_angle_d 0.592 f_chiral_restr 0.044 f_plane_restr 0.006 f_bond_d 0.004
Sample pentameric ligand-gated 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 78444 Reported Resolution (Å) 3.35 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 Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 71
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 600 Maximum Defocus (nm) 1400 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 PARTICLE SELECTION cryoSPARC 4.2.1 IMAGE ACQUISITION EPU CTF CORRECTION CTFFIND 4.1 MODEL FITTING Coot 0.9.8.7 MODEL REFINEMENT PHENIX 1.21 INITIAL EULER ASSIGNMENT RELION 4.0.1 FINAL EULER ASSIGNMENT RELION 4.0.1 CLASSIFICATION RELION 4.0.1 RECONSTRUCTION RELION 4.0.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 641067