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Alpha7-nicotinic acetylcholine receptor bound to conotoxin ImII
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7KOO
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 6.923 f_angle_d 0.562 f_chiral_restr 0.073 f_bond_d 0.004 f_plane_restr 0.003
Sample Complex of conotoxin ImII and human Alpha7 nicotinic Acetylcholine receptor Sample Components Alpha7 nicotinic Acetylcholine receptor Alpha-conotoxin ImII
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 101142 Reported Resolution (Å) 3.1 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7KOO) Refinement Space Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 55
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 5000 Maximum Defocus (nm) 30000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 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 MODEL FITTING Coot MODEL REFINEMENT PHENIX 1.20.1_4487 RECONSTRUCTION cryoSPARC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION