7ZGO
Cryo-EM structure of human NKCC1 (TM domain)
ELECTRON MICROSCOPY
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 6NPL |
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 |