6WWZ
Cryo-EM structure of the human chemokine receptor CCR6 in complex with CCL20 and a Go protein
ELECTRON MICROSCOPY
| Sample |
|---|
| CCR6-CCL20-Go complex |
| Sample Components |
| Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1, Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
| C-C motif chemokine 20, Guanine nucleotide-binding protein G(o) subunit alpha,Guanine nucleotide-binding protein G(o) subunit alpha, C-C chemokine receptor type 6,C-C chemokine receptor type 6 |
| scFv16 |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 230450 |
| Reported Resolution (Å) | 3.34 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (6G79, 6DDE, 1M8A) | 2 (6G79, 6DDE, 1M8A) | |||
| Refinement Space | REAL | REAL | |||
| Refinement Protocol | RIGID BODY FIT | FLEXIBLE FIT | |||
| Refinement Target | Correlation coefficient | ||||
| Overall B Value | 123.52 | ||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 SUMMIT (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 81 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 600 |
| Maximum Defocus (nm) | 2000 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2.7 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
| Nominal Magnification | 165000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | RELION | 3.0.5 |
| IMAGE ACQUISITION | SerialEM | 3.8.0 beta |
| CTF CORRECTION | CTFFIND | 4.1 |
| MODEL FITTING | UCSF Chimera | 1.14 |
| MODEL FITTING | Coot | 0.8.9.2 |
| INITIAL EULER ASSIGNMENT | RELION | 3.0.5 |
| FINAL EULER ASSIGNMENT | RELION | 3.0.5 |
| CLASSIFICATION | RELION | 3.0.5 |
| RECONSTRUCTION | RELION | 3.0.5 |
| MODEL REFINEMENT | Coot | 0.8.9.2 |
| MODEL REFINEMENT | PHENIX | dev-3026 |
| MODEL REFINEMENT | REFMAC | CCP4 7.0 |
| MODEL FITTING | UCSF Chimera | 1.14 |
| MODEL FITTING | Coot | 0.8.9.2 |
| MODEL REFINEMENT | Coot | 0.8.9.2 |
| MODEL REFINEMENT | PHENIX | dev-3026 |
| MODEL REFINEMENT | REFMAC | CCP4 7.0 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 1000382 | |||
