6IRA

Structure of the human GluN1/GluN2A NMDA receptor in the glutamate/glycine-bound state at pH 7.8


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4PE5 
experimental modelPDB 5TQ0 
experimental modelPDB 5H8F 
Sample
Human GluN1/GluN2A NMDA receptors in the glutamate/glycine-bound state at pH 7.8
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK II
Cryogen NameETHANE
Sample Vitrification Detailsblot for 2 seconds before plunging in liquid ethane.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles131990
Reported Resolution (Å)4.5
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC2
Map-Model Fitting and Refinement
Id1 (4PE5, 5TQ0, 5H8F, 4PE5, 4PE5, 4PE5, 5H8F)
Refinement Space
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)63
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
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
CTF CORRECTIONGctf
MODEL FITTINGUCSF Chimera
CLASSIFICATIONcryoSPARC
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION431818