4AQV
Model of human kinesin-5 motor domain (3HQD) and mammalian tubulin heterodimer (1JFF) docked into the 9.7-angstrom cryo-EM map of microtubule-bound kinesin-5 motor domain in the AMPPPNP state.
ELECTRON MICROSCOPY
| Sample |
|---|
| 13-PROTOFILAMENT MICROTUBULE-BOUND HUMAN KINESIN-5 MOTOR DOMAIN WITH AMPPNP |
| 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 MARK I, METHOD- CHAMBER AT 24 DEGREES C, BLOT 2.5 SEC, |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 3587 |
| Reported Resolution (Å) | 9.7 |
| Resolution Method | |
| Other Details | THE N-TERMINAL RESIDUES 6 TO 16 WERE BUILT MANUALLY IN THE EM DENSITY. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2077. (DEPOSITION ID: 10751 ... |
| Refinement Type | |
| Symmetry Type | HELICAL |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (3HQD, 1JFF) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | FLEXIBLE FIT | ||||
| Refinement Target | Cross-correlation coefficient | ||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | METHOD--RIGID BODY (1JFF). RIGID BODY AND FLEXIBLE FITTING (3HQD) REFINEMENT PROTOCOL--X-RAY | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | KODAK SO-163 FILM | ||||||||
| Electron Dose (electrons/Å**2) | 18 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2011-01-10 |
| Temperature (Kelvin) | 90 |
| Microscope Model | FEI TECNAI F20 |
| Minimum Defocus (nm) | 700 |
| Maximum Defocus (nm) | 2200 |
| 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 | |
| FREALIGN | ||||
