6VTK
Structure of an acid-sensing ion channel solubilized by styrene maleic acid and in a desensitized state at low pH
ELECTRON MICROSCOPY
| Sample |
|---|
| Acid-sensing ion channel |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | HOMEMADE PLUNGER |
| Cryogen Name | ETHANE-PROPANE |
| Sample Vitrification Details | Specimen was frozen on a custom-made manual plunge apparatus in a cold room environment maintained at high humidity. |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 121148 |
| Reported Resolution (Å) | 2.82 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C3 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (4NYK) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | FLEXIBLE FIT | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 SUMMIT (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 50 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | |
| Maximum Defocus (nm) | |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | DoG Picker | |
| IMAGE ACQUISITION | Leginon | |
| CTF CORRECTION | Gctf | |
| MODEL FITTING | Coot | |
| INITIAL EULER ASSIGNMENT | cryoSPARC | 2 |
| FINAL EULER ASSIGNMENT | cryoSPARC | 2 |
| CLASSIFICATION | cryoSPARC | 2 |
| RECONSTRUCTION | cryoSPARC | 2 |
| MODEL REFINEMENT | PHENIX | 1.13 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||
