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GABA-A a4b3d receptor in complex with GABA and Nb24
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7QN7
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 5.312 f_angle_d 0.522 f_chiral_restr 0.043 f_plane_restr 0.005 f_bond_d 0.004
Sample alpha4-beta3-delta GABA-A receptor in complex with GABA and nanobody Nb24 Sample Components GABA-A receptor Nanobody Nb24
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 47269 Reported Resolution (Å) 3.27 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7QN7) Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (6k x 4k) Electron Dose (electrons/Å**2) 49.95
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 2200 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 130000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 4.4.1 to 4.7.1 CTF CORRECTION cryoSPARC 4.4.1 to 4.7.1 MODEL FITTING UCSF ChimeraX 1.8 MODEL REFINEMENT PHENIX 1.20.1_4487 INITIAL EULER ASSIGNMENT cryoSPARC 4.4.1 to 4.7.1 FINAL EULER ASSIGNMENT cryoSPARC 4.4.1 to 4.7.1 CLASSIFICATION cryoSPARC 4.4.1 to 4.7.1 RECONSTRUCTION cryoSPARC 4.4.1 to 4.7.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1606604