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 |
| r_long_range_B_refined | 30.848 |
| r_long_range_B_other | 30.848 |
| r_scangle_other | 20.467 |
| r_mcangle_it | 17.388 |
| r_mcangle_other | 17.387 |
| r_dihedral_angle_3_deg | 14.027 |
| r_scbond_it | 12.725 |
| r_scbond_other | 12.724 |
| r_mcbond_it | 11.16 |
| r_mcbond_other | 11.159 |
| 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) | 2400 |
| 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 |
| MODEL REFINEMENT | PHENIX | |
| 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 | |
