5A42
Cryo-EM single particle 3D reconstruction of the native conformation of E. coli alpha-2-macroglobulin (ECAM)
ELECTRON MICROSCOPY
Sample |
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NATIVE CONFORMATION OF THE E. COLI ALPHA-2- MACROGLOBULIN (ECAM). |
Specimen Preparation | |
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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 | |
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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 | |||||
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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 | |||||||||
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Detector Type | FEI EAGLE (4k x 4k) | ||||||||
Electron Dose (electrons/Å**2) |
Imaging Experiment | 1 |
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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 | ||
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Task | Software Package | Version |
MODEL FITTING | UCSF Chimera | |
RECONSTRUCTION | EMAN | 2 |
RECONSTRUCTION | Xmipp | 3 |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
EACH IMAGE |