8ALY
Cryo-EM structure of human tankyrase 2 SAM-PARP filament (G1032W mutant)
ELECTRON MICROSCOPY
Refinement
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 19.041 |
| f_angle_d | 0.547 |
| f_chiral_restr | 0.044 |
| f_bond_d | 0.005 |
| f_plane_restr | 0.004 |
| Sample |
|---|
| TNKS2 SAM-PARP (867-1162) filament |
| 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 | 139880 |
| Reported Resolution (Å) | 2.98 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Axial Symmetry | D1 |
| Axial Rise | 13.6 |
| Angular Rotation | -52.3 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (5NWG, 5JRT) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | FLEXIBLE FIT | ||||
| Refinement Target | FSC | ||||
| Overall B Value | 7.41 | ||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 SUMMIT (4k x 4k) | GATAN K3 (6k x 4k) | |||||||
| Electron Dose (electrons/Å**2) | 40 | 40 | |||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | TFS KRIOS |
| Minimum Defocus (nm) | 1200 |
| Maximum Defocus (nm) | 3500 |
| 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 | 81000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| IMAGE ACQUISITION | EPU | |
| CTF CORRECTION | RELION | 3.08 |
| MODEL FITTING | UCSF Chimera | 1.14 |
| MODEL FITTING | Coot | 0.9 |
| CLASSIFICATION | RELION | 3.08 |
| RECONSTRUCTION | RELION | 3.08 |
| MODEL REFINEMENT | PHENIX | 1.18.2 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 188925 | |||
