ELECTRON MICROSCOPY

Sample

Complex between GluA1/2 AMPA receptor and auxiliary subunit TARP gamma8

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details 3-4 second blots
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 83344
Reported Resolution (Å) 3.5
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 Initial fitting was performed in Chimera with the Rigid Body fit option. The crystal structure of the L-Glu+CTZ GluA2 LBD was used for the LBD layer. After rigid body fitting Refmac and Phenix were used in refinement. Manual model building was performed in Coot
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 51
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 340
Maximum Defocus (nm) 2200
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 ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION RELION ?
IMAGE ACQUISITION EPU ?
CTF CORRECTION Gctf ?
CTF CORRECTION RELION ?
MODEL FITTING UCSF Chimera ?
MODEL FITTING Coot ?
MODEL REFINEMENT PHENIX ?
MODEL REFINEMENT REFMAC ?
INITIAL EULER ASSIGNMENT RELION ?
FINAL EULER ASSIGNMENT RELION ?
CLASSIFICATION RELION ?
RECONSTRUCTION RELION ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION CTF refinement was performed after 3D reconstruction