7BW7
Cryo-EM Structure for the Ectodomain of the Full-length Human Insulin Receptor in Complex with 1 Insulin.
ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 18.222 |
| f_angle_d | 0.995 |
| f_chiral_restr | 0.058 |
| f_bond_d | 0.007 |
| f_plane_restr | 0.006 |
| Sample |
|---|
| Human Insulin Receptor Complexed with 1 Insulin |
| Sample Components |
| Insulin receptor |
| Insulin |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK III |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 1162871 |
| Reported Resolution (Å) | 4.1 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (6PXV, 6PXV, 6PXV) | 2 (6PXV, 6PXV, 6PXV) | |||
| Refinement Space | REAL | REAL | |||
| Refinement Protocol | FLEXIBLE FIT | FLEXIBLE FIT | |||
| Refinement Target | Correlation coefficient | Correlation coefficient | |||
| Overall B Value | 75 | 90 | |||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 QUANTUM (4k x 4k) | GATAN K2 QUANTUM (4k x 4k) | GATAN K2 QUANTUM (4k x 4k) | ||||||
| Electron Dose (electrons/Å**2) | 50 | 50 | 50 | ||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 700 |
| Maximum Defocus (nm) | 2700 |
| 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 | 105000 |
| Calibrated Magnification | 43796 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | EMAN2 | 2.21a |
| PARTICLE SELECTION | RELION | 2.1 |
| IMAGE ACQUISITION | SerialEM | 3.6 |
| CTF CORRECTION | Gctf | 1.06 |
| MODEL FITTING | UCSF Chimera | 1.11.2 |
| MODEL FITTING | Coot | 0.9 |
| INITIAL EULER ASSIGNMENT | cryoSPARC | 0.6.5 |
| FINAL EULER ASSIGNMENT | RELION | 3.0.7 |
| CLASSIFICATION | RELION | 3.0.7 |
| RECONSTRUCTION | RELION | 3.0.7 |
| MODEL REFINEMENT | PHENIX | 1.16 |
| MODEL FITTING | UCSF Chimera | 1.11.2 |
| MODEL FITTING | Coot | 0.9 |
| MODEL REFINEMENT | PHENIX | 1.16 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 2069212 | Particle picking was done using EMAN2. 2D classifications were done in Relion 2.1 and good classes were selected. | ||
