8AG6
human MutSalpha (MSH2/MSH6) binding to DNA with a GT mismatch
ELECTRON MICROSCOPY
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2O8B | |
| Sample |
|---|
| MutSalpha on mismatched DNA |
| Sample Components |
| MSH2 |
| MSH6 |
| DNA containing a G/T mismatch |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | 3 s blotting with blot force 10 |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 289289 |
| Reported Resolution (Å) | 2.8 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (2O8B) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | PDB-REDO webserver: https://pdb-redo.eu/ | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K3 (6k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 50 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 900 |
| Maximum Defocus (nm) | 2400 |
| 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 | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details | collected on Krios 1 at Netherlands Center for Electron Nanoscopy (NeCEN) |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| IMAGE ACQUISITION | EPU | 2.10.0 |
| CTF CORRECTION | RELION | 4.0 |
| MODEL FITTING | UCSF ChimeraX | |
| INITIAL EULER ASSIGNMENT | cryoSPARC | |
| FINAL EULER ASSIGNMENT | RELION | 4.0 |
| CLASSIFICATION | RELION | 4.0 |
| RECONSTRUCTION | RELION | 4.0 |
| MODEL REFINEMENT | PHENIX | 1.20.1 |
| MODEL REFINEMENT | Coot | 0.9.7 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | 5412220 | |||
