Full-length human cystathionine beta-synthase with C-terminal 6xHis-tag, SAM bound, activated state, helical reconstruction
ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 12.615 |
| f_angle_d | 0.7923 |
| f_chiral_restr | 0.0459 |
| f_plane_restr | 0.0041 |
| f_bond_d | 0.0039 |
| Sample |
|---|
| Helical assembly of full-length human cystathionine beta-synthase in the basal state |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | FILAMENT |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | HELICAL |
| Number of Particles | 425260 |
| Reported Resolution (Å) | 4 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Axial Symmetry | D2 |
| Axial Rise | 46.7 |
| Angular Rotation | -178.6 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (4UUU, 4PCU) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | FLEXIBLE FIT | ||||
| Refinement Target | |||||
| Overall B Value | 79.15 | ||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K3 BIOQUANTUM (6k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 39.96 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 900 |
| Maximum Defocus (nm) | 3000 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER |
| Nominal Magnification | |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | cryoSPARC | 3.1.0 |
| CTF CORRECTION | cryoSPARC | 3.1.0 |
| MODEL FITTING | UCSF ChimeraX | |
| INITIAL EULER ASSIGNMENT | cryoSPARC | ab-inito from data |
| FINAL EULER ASSIGNMENT | cryoSPARC | ab-inito from data |
| CLASSIFICATION | cryoSPARC | 3.1.0 |
| RECONSTRUCTION | cryoSPARC | 3.1.0 |
| MODEL REFINEMENT | PHENIX | |
| MODEL REFINEMENT | ISOLDE | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 5240414 | |||
