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GLIC pentameric ligand-gated ion channel, pH 5
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4NPQ
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 4.862 f_angle_d 0.585 f_chiral_restr 0.043 f_bond_d 0.005 f_plane_restr 0.004
Sample Pentameric ion channel
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details blot for 1.5 s
force -1
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 300000 Reported Resolution (Å) 3.4 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (4NPQ) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value 278 Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 45
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 2000 Maximum Defocus (nm) 3800 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 165000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EPU CTF CORRECTION RELION MODEL FITTING Coot MODEL REFINEMENT PHENIX 1.15 CLASSIFICATION RELION 3.1 RECONSTRUCTION RELION 3.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 700000