7ZGO
Cryo-EM structure of human NKCC1 (TM domain)
ELECTRON MICROSCOPY
| Sample |
|---|
| Dimeric NKCC1 in complex with Na+, K+ and 2Cl- |
| Sample Components |
| NKCC1 in complex with Na+, K+ and 2Cl- |
| NKCC1 in complex with Na+, K+ and 2Cl- |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | 3 uL sample was applied to the gold foil side of the grid and blotted iusing a blot force of 0 and blot time of 3-4 seconds before plunge- freezing in ... |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 258791 |
| Reported Resolution (Å) | 2.55 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C2 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (6NPL) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | AB INITIO MODEL | ||||
| Refinement Target | |||||
| Overall B Value | 61.44 | ||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K3 BIOQUANTUM (6k x 4k) | GATAN K3 BIOQUANTUM (6k x 4k) | GATAN K3 BIOQUANTUM (6k x 4k) | ||||||
| Electron Dose (electrons/Å**2) | 40.12 | 30.78 | 60.438 | ||||||
| Imaging Experiment | 1 | 2 |
|---|---|---|
| Date of Experiment | ||
| Temperature (Kelvin) | ||
| Microscope Model | FEI TITAN KRIOS | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 600 | 500 |
| Maximum Defocus (nm) | 1600 | 2400 |
| Minimum Tilt Angle (degrees) | ||
| Maximum Tilt Angle (degrees) | ||
| Nominal CS | ||
| Imaging Mode | BRIGHT FIELD | BRIGHT FIELD |
| Specimen Holder Model | ||
| Nominal Magnification | 165000 | 130000 |
| Calibrated Magnification | ||
| Source | FIELD EMISSION GUN | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| CTF CORRECTION | RELION | 3.1 |
| MODEL FITTING | PHENIX | |
| MODEL REFINEMENT | PHENIX | |
| RECONSTRUCTION | RELION | 3.1 |
| RECONSTRUCTION | cryoSPARC | 3 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 1002976 | Dataset 1: 1002976 particles Dataset 2: 1566691 Dataset 3: 2710603 | ||
