3J9P
Structure of the TRPA1 ion channel determined by electron cryo-microscopy
ELECTRON MICROSCOPY
| Sample |
|---|
| Recombinant human TRPA1 ion channel |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK I |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Blot for 7 seconds before plunging into liquid ethane (FEI VITROBOT MARK I). |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 43585 |
| Reported Resolution (Å) | 4.24 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C4 |
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 21 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2014-07-18 |
| Temperature (Kelvin) | 120 |
| Microscope Model | FEI POLARA 300 |
| Minimum Defocus (nm) | 1500 |
| Maximum Defocus (nm) | 2800 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 31000 |
| Calibrated Magnification | 31000 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details | Gatan K2 Summit in super-resolution counting mode. Motion correction as described in Li et al. (2013) Nature Methods. |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| RECONSTRUCTION | RELION | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| Each particle | ||||
