ELECTRON MICROSCOPY
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3K0C | |
| Sample |
|---|
| Compressed state hexamer of nighttime state phosphomutant KaiC (KaiC-EA) |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | HOMEMADE PLUNGER |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Grids with applied sample were manually blotted with filter paper (Whatman No.1) for 3 seconds in a 4 C cold room before plunge freezing in liquid eth ... |
| Vitrification Instrument | HOMEMADE PLUNGER |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Grids with applied sample were manually blotted with filter paper (Whatman No.1) for 3 seconds in a 4 C cold room before plunge freezing in liquid eth ... |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 122855 |
| Reported Resolution (Å) | 3.2 |
| Resolution Method | FSC 0.143 CUT-OFF |
| Other Details | |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C2 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (3K0C) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | |||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN K2 SUMMIT (4k x 4k) | GATAN K2 SUMMIT (4k x 4k) | |||||||
| Electron Dose (electrons/Å**2) | 48 | 51 | |||||||
| Imaging Experiment | 1 | 2 |
|---|---|---|
| Date of Experiment | ||
| Temperature (Kelvin) | ||
| Microscope Model | FEI TALOS ARCTICA | FEI TALOS ARCTICA |
| Minimum Defocus (nm) | -800 | -500 |
| Maximum Defocus (nm) | -1700 | 1500 |
| Minimum Tilt Angle (degrees) | ||
| Maximum Tilt Angle (degrees) | ||
| Nominal CS | 2.7 | 2.7 |
| Imaging Mode | BRIGHT FIELD | BRIGHT FIELD |
| Specimen Holder Model | FEI TITAN KRIOS AUTOGRID HOLDER | FEI TITAN KRIOS AUTOGRID HOLDER |
| Nominal Magnification | 36000 | 36000 |
| Calibrated Magnification | 43478 | 43478 |
| Source | FIELD EMISSION GUN | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 200 | 200 |
| Imaging Details | Sample was imaged at a 40 degree tilt. | Sample was imaged at 0 degree tilt. |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| PARTICLE SELECTION | Appion | |
| IMAGE ACQUISITION | Leginon | |
| CTF CORRECTION | RELION | 3.0 |
| MODEL FITTING | UCSF Chimera | |
| INITIAL EULER ASSIGNMENT | RELION | 3.0 |
| FINAL EULER ASSIGNMENT | RELION | 3.0 |
| CLASSIFICATION | RELION | 3.0 |
| RECONSTRUCTION | RELION | 3.0 |
| MODEL REFINEMENT | Coot | |
| IMAGE ACQUISITION | Leginon | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| PHASE FLIPPING AND AMPLITUDE CORRECTION | CTF Refinement performed in Relion | 2016826 | ||
