7QHH

Desensitized state of GluA1/2 AMPA receptor in complex with TARP-gamma 8 (TMD-LBD)

ELECTRON MICROSCOPY

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Refinement

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	24.541
r_long_range_B_refined	16.285
r_long_range_B_other	16.285
r_dihedral_angle_3_deg	13.195
r_dihedral_angle_4_deg	7.584
r_mcangle_it	5.312
r_mcangle_other	5.311
r_dihedral_angle_1_deg	4.863
r_scangle_other	3.13
r_mcbond_it	2.802
r_mcbond_other	2.802
r_scbond_it	1.393
r_scbond_other	1.393
r_angle_other_deg	1.381
r_angle_refined_deg	1.263
r_chiral_restr	0.055
r_bond_refined_d	0.006
r_gen_planes_refined	0.006
r_gen_planes_other	0.002
r_bond_other_d
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

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

Specimen Preparation
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	105918
Reported Resolution (Å)	3.6
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	C2

Map-Model Fitting and Refinement
Id	1 (6QKC, 3TKD)
Refinement Space	REAL
Refinement Protocol	RIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details	First, rigid body fit was performed in Chimera using the coordinates of the TMD of 6QKC and the coordinates of the LBD in PDB code 3TKD. Manual model building was performed with Coot and Refinement was performed with Refmac. The TMD and LBD maps obtained independently aided model building but were not used for refinement.

Data Acquisition
Detector Type	GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)	51

Imaging Experiment	1
Date of Experiment
Temperature (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	FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification	81000
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
IMAGE ACQUISITION	EPU
CTF CORRECTION	Gctf
CTF CORRECTION	RELION	3.1
MODEL FITTING	Coot
MODEL FITTING	UCSF Chimera
INITIAL EULER ASSIGNMENT	RELION	3.1
FINAL EULER ASSIGNMENT	RELION	3.1
CLASSIFICATION	RELION	3.1
RECONSTRUCTION	RELION	3.1
MODEL REFINEMENT	REFMAC

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION