31IC | pdb_000031ic

Structure of human excitatory amino acid transporter 3 (EAAT3) in complex with B11 nanobody


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6S3Q 
experimental modelPDB 1ZVH 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d11.752
f_angle_d0.4678
f_chiral_restr0.0384
f_plane_restr0.0037
f_bond_d0.0023
Sample
human excitatory amino acid transporter 3 (EAAT3) in complex with B11 nanobody
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles132709
Reported Resolution (Å)3.5
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (6S3Q, 1ZVH)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Targetreal space refinement
Overall B Value
Fitting Procedure
Detailsinitial model fitted with 6S3Q for EAAT3 and 1ZVH for B11 nanobody in COOT. Model was refined in Phenix.
Data Acquisition
Detector TypeTFS FALCON 4i (4k x 4k)
Electron Dose (electrons/Å**2)38.55
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)2400
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification130000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging DetailsObjective aperture 100 um; data collected on eBIC-Diamond Krios III microscope
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC3.3.1
CTF CORRECTIONcryoSPARC3.3.1
MODEL FITTINGCoot0.9.8.93
INITIAL EULER ASSIGNMENTcryoSPARC3.3.1
FINAL EULER ASSIGNMENTcryoSPARC3.3.1
CLASSIFICATIONcryoSPARC3.3.1
RECONSTRUCTIONcryoSPARC3.3.1
MODEL REFINEMENTPHENIX1.21.1_5286
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION