3J1E
Cryo-EM structure of 9-fold symmetric rATcpn-beta in apo state
ELECTRON MICROSCOPY
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3KO1 | |
| Sample |
|---|
| 9-fold symmetric rATcpn-beta in apo state |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK IV |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | Blot for 4 seconds before plunging into liquid ethane (FEI Vitrobot Mark IV). |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 23285 |
| Reported Resolution (Å) | 8.3 |
| Resolution Method | |
| Other Details | Spider, EMAN1.9 |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C9 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 (3KO1) | ||||
| Refinement Space | REAL | ||||
| Refinement Protocol | FLEXIBLE FIT | ||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | METHOD--symmetry-restrained MDFF REFINEMENT PROTOCOL--Rigid body and Molecular Dynamics Flexible Fitting | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | GATAN ULTRASCAN 4000 (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | 20 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2010-12-17 |
| Temperature (Kelvin) | |
| Microscope Model | FEI TITAN KRIOS |
| Minimum Defocus (nm) | 1500 |
| Maximum Defocus (nm) | 3500 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 2.7 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | 96000 |
| Calibrated Magnification | 96000 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | UCSF Chimera | |
| RECONSTRUCTION | EMAN | 1.9 |
| RECONSTRUCTION | SPIDER | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| The whole micrograph | ||||
