8PM2

Structure of the murine trace amine-associated receptor TAAR7f bound to N,N-dimethylcyclohexylamine (DMCH) in complex with mini-Gs trimeric G protein

ELECTRON MICROSCOPY

Refinement

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.273
f_angle_d	0.766
f_chiral_restr	0.047
f_plane_restr	0.005
f_bond_d	0.004

Sample
A complex of mouse trace-amine associated receptor 7f solubilized in LMNG/CHS bound to N,N-dimethylcyclohexylamine and coupled to: Engineered guanine nucleotide-binding protein G(s) subunit alpha isoform short + Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 + Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 + Nanobody 35

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK IV
Cryogen Name	ETHANE
Sample Vitrification Details

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	172639
Reported Resolution (Å)	2.92
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT

Map-Model Fitting and Refinement
Id	1
Refinement Space	REAL
Refinement Protocol	OTHER
Refinement Target
Overall B Value
Fitting Procedure
Details

Data Acquisition
Detector Type	FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)	55

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	TFS KRIOS
Minimum Defocus (nm)	800
Maximum Defocus (nm)	800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2.7
Imaging Mode	BRIGHT FIELD
Specimen Holder Model	FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification	96000
Calibrated Magnification	96000
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
PARTICLE SELECTION	cryoSPARC	4.1.1+patch23011029
CTF CORRECTION	cryoSPARC	4.1.1+patch23011029
MODEL FITTING	cryoSPARC	4.1.1+patch23011029
INITIAL EULER ASSIGNMENT	cryoSPARC	4.1.1+patch23011029
FINAL EULER ASSIGNMENT	cryoSPARC	4.1.1+patch23011029
CLASSIFICATION	cryoSPARC	4.1.1+patch23011029
RECONSTRUCTION	cryoSPARC	4.1.1+patch23011029
MODEL REFINEMENT	cryoSPARC	4.1.1+patch23011029

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION	Done with cryoSPARC patch motion correction	9199357	Particles were heavily over-picked

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.