4ADV
Structure of the E. coli methyltransferase KsgA bound to the E. coli 30S ribosomal subunit
ELECTRON MICROSCOPY
Sample |
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E. COLI METHYLTRANSFERASE KSGA BOUND TO THE E. COLI 30S RIBOSOMAL SUBUNIT |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | HOMEMADE PLUNGER |
Cryogen Name | ETHANE |
Sample Vitrification Details | VITRIFICATION 1 -- CRYOGEN- ETHANE, INSTRUMENT- PLUNGER, |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | 23343 |
Reported Resolution (Å) | 13.5 |
Resolution Method | |
Other Details | 30S RIBOSOMAL SUBUNIT HEAD AND BODY WERE FITTED SEPARATELY AS RIGID BODIES. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2017. (DEPOSITION ID: ... |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C1 |
Map-Model Fitting and Refinement | |||||
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Id | 1 (2AVY, 1QYR) | ||||
Refinement Space | REAL | ||||
Refinement Protocol | RIGID BODY FIT | ||||
Refinement Target | Cross-correlation coefficient | ||||
Overall B Value | |||||
Fitting Procedure | |||||
Details | METHOD--RIGID BODY REFINEMENT PROTOCOL--XRAY |
Data Acquisition | |||||||||
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Detector Type | GATAN ULTRASCAN 4000 (4k x 4k) | ||||||||
Electron Dose (electrons/Å**2) | 20 |
Imaging Experiment | 1 |
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Date of Experiment | |
Temperature (Kelvin) | |
Microscope Model | FEI TECNAI 20 |
Minimum Defocus (nm) | 2000 |
Maximum Defocus (nm) | 4000 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | |
Nominal Magnification | 62000 |
Calibrated Magnification | 82000 |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 200 |
Imaging Details | SEMI-AUTOMATIC DATA ACQUISITION WITH SERIAL EM SCRIPT |
EM Software | ||
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Task | Software Package | Version |
MODEL FITTING | UCSF Chimera | |
RECONSTRUCTION | IMAGIC | 5 |
RECONSTRUCTION | SPIDER |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
PER IMAGE, CTFFIND3 |