5VKQ
Structure of a mechanotransduction ion channel Drosophila NOMPC in nanodisc
ELECTRON MICROSCOPY
| Sample |
|---|
| Tetrameric channel |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | GATAN CRYOPLUNGE 3 |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | 2.5 sec blot, -1 offset, whatman #1 filter paper on front side, plastic on back side |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 175314 |
| Reported Resolution (Å) | 3.55 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C4 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | AB INITIO MODEL | ||||
| Refinement Target | |||||
| Overall B Value | 125.7 | ||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 SUMMIT (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 54 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI POLARA 300 |
| Minimum Defocus (nm) | -1500 |
| Maximum Defocus (nm) | -3000 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2.1 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | GATAN HCHST 3008 SINGLE TILT HIGH RESOLUTION HELIUM COOLING HOLDER |
| Nominal Magnification | 31000 |
| Calibrated Magnification | 41132 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | RELION | 1.4 |
| IMAGE ACQUISITION | SerialEM | 3.4 |
| CTF CORRECTION | Gctf | 1.06 |
| MODEL FITTING | Coot | 0.8.7 |
| INITIAL EULER ASSIGNMENT | RELION | 1.4 |
| FINAL EULER ASSIGNMENT | RELION | 1.4 |
| CLASSIFICATION | RELION | 1.4 |
| RECONSTRUCTION | RELION | 1.4 |
| MODEL REFINEMENT | PHENIX | dev-2608 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| NONE | 190879 | |||
