ELECTRON MICROSCOPY

Sample

CryoEM structure of human full-length beta3gamma2 GABA(A) receptor in complex with Megabody25, doubly occupied GARLH4 and Neuroligin2 TMD, in a closed state

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument LEICA EM GP
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 62730
Reported Resolution (Å) 2.9
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol OTHER
Refinement Target FSC at 0.5
Overall B Value 20
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type TFS FALCON 4i (4k x 4k)
Electron Dose (electrons/Å2) 45.28
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS KRIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 2000
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 165000
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION Warp 1.0.9
IMAGE ACQUISITION EPU ?
CTF CORRECTION CTFFIND 4.1
MODEL FITTING PHENIX 19.2
INITIAL EULER ASSIGNMENT cryoSPARC 4.40
FINAL EULER ASSIGNMENT cryoSPARC 4.40
RECONSTRUCTION cryoSPARC 4.40
MODEL REFINEMENT PHENIX 19.2
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?