Human doublecortin N-DC repeat plus linker, and tubulin (2XRP) docked into an 8A cryo-EM map of doublecortin-stabilised microtubules reconstructed in absence of kinesin
ELECTRON MICROSCOPY
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2XRP | |
| Sample |
|---|
| DOUBLECORTIN-STABILISED MICROTUBULES |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | FILAMENT |
| Vitrification Instrument | FEI VITROBOT MARK I |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | CRYOGEN- ETHANE, HUMIDITY- 100, INSTRUMENT- FEI VITROBOT |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 146000 |
| Reported Resolution (Å) | 8.3 |
| Resolution Method | |
| Other Details | DOUBLECORTIN LINKER REGION 151-156 WAS MODELLED INTO THE EM MAP USING CHIMERA AND REFINED USING FLEX-EM SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMD ... |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (2XRP) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | RIGID BODY FIT | ||||
| Refinement Target | Cross-correlation coefficient | ||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | METHOD--RIGID BODY | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | KODAK SO-163 FILM | ||||||||
| Electron Dose (electrons/Å**2) | 17 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2010-10-01 |
| Temperature (Kelvin) | 93 |
| Microscope Model | FEI TECNAI F20 |
| Minimum Defocus (nm) | 900 |
| Maximum Defocus (nm) | 3600 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 50000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 200 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | Flex-EM | |
| MODEL FITTING | UCSF Chimera | |
| RECONSTRUCTION | FREALIGN | |
| RECONSTRUCTION | SPIDER | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| DONE WITH FREALIGN | ||||
