7QHB

Active state of GluA1/2 in complex with TARP gamma 8, L-glutamate and CTZ


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d16.477
f_angle_d0.996
f_chiral_restr0.067
f_bond_d0.018
f_plane_restr0.006
Sample
Complex between GluA1/2 AMPA receptor and auxiliary subunit TARP gamma8
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details3-4 second blots
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles83344
Reported Resolution (Å)3.5
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC2
Map-Model Fitting and Refinement
Id1 (6QKC, 3TKD)
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
DetailsInitial 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. ...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 TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)51
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)340
Maximum Defocus (nm)2200
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION
IMAGE ACQUISITIONEPU
CTF CORRECTIONGctf
CTF CORRECTIONRELION
MODEL FITTINGUCSF Chimera
MODEL FITTINGCoot
MODEL REFINEMENTPHENIX
MODEL REFINEMENTREFMAC
INITIAL EULER ASSIGNMENTRELION
FINAL EULER ASSIGNMENTRELION
CLASSIFICATIONRELION
RECONSTRUCTIONRELION
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTIONCTF refinement was performed after 3D reconstruction