Cryo-EM single particle 3D reconstruction of the native conformation of E. coli alpha-2-macroglobulin (ECAM)
ELECTRON MICROSCOPY
| Sample |
|---|
| NATIVE CONFORMATION OF THE E. COLI ALPHA-2- MACROGLOBULIN (ECAM). |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | LEICA EM CPC |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | VITRIFICATION 1 -- CRYOGEN- ETHANE, INSTRUMENT- LEICA EM CPC, METHOD- BLOTTED FOR 1MIN BEFORE PLUNGING WITH 5UL PURIFIED SAMPLE., |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 46842 |
| Reported Resolution (Å) | 16 |
| Resolution Method | |
| Other Details | THE FITTED MODEL IS AN HOMOLOGY MODEL BASED ON A ECAM HOMOLOG FROM SALMONELLA ENTERICA (PDB CODE 4U48) AND THE CRYSTAL STRUCTURES ECAM DOMAINS (PDB CO ... |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C1 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| 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 | FEI EAGLE (4k x 4k) | ||||||||
| Electron Dose (electrons/Å**2) | |||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2014-06-10 |
| Temperature (Kelvin) | |
| Microscope Model | FEI TECNAI 20 |
| Minimum Defocus (nm) | 1500 |
| Maximum Defocus (nm) | 3500 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | |
| Nominal Magnification | |
| Calibrated Magnification | 84269 |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 200 |
| Imaging Details |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | UCSF Chimera | |
| RECONSTRUCTION | EMAN | 2 |
| RECONSTRUCTION | Xmipp | 3 |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| EACH IMAGE | ||||
