Structure of full-length IP3R1 channel in the apo-state determined by single particle cryo-EM
ELECTRON MICROSCOPY
| Sample |
|---|
| Inositol 1,4,5-trisphosphate receptor, type 1 |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Blot once for 3 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV). |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 96106 |
| Reported Resolution (Å) | 4.7 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | Applied symmetry: C4 |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C4 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | |||||
| Refinement Protocol | |||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 22 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2014-01-01 |
| Temperature (Kelvin) | 100 |
| Microscope Model | FEI POLARA 300 |
| Minimum Defocus (nm) | 600 |
| Maximum Defocus (nm) | 3500 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | GATAN LIQUID NITROGEN |
| Nominal Magnification | 23000 |
| Calibrated Magnification | 30886 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| RECONSTRUCTION | EMAN | 2.1 |
| RECONSTRUCTION | RELION | 1.3 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| CTFFIND3 | ||||
