2BCW
Coordinates of the N-terminal domain of ribosomal protein L11,C-terminal domain of ribosomal protein L7/L12 and a portion of the G' domain of elongation factor G, as fitted into cryo-em map of an Escherichia coli 70S*EF-G*GDP*fusidic acid complex
ELECTRON MICROSCOPY
Sample |
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70S*EF-G*GDP*FUSIDIC ACID COMPLEX |
Sample Components |
50S ribosomal protein L11 |
50S ribosomal protein L7/L12 |
Elongation factor G |
Specimen Preparation | |
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Sample Aggregation State | PARTICLE |
Vitrification Instrument | |
Cryogen Name | |
Sample Vitrification Details | RAPID-FREEZING IN LIQUID ETHANE |
3D Reconstruction | |
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Reconstruction Method | SINGLE PARTICLE |
Number of Particles | |
Reported Resolution (Å) | 11.2 |
Resolution Method | |
Other Details | PROJECTION MATCHING USING SPIDER PACKAGE |
Refinement Type | |
Symmetry Type | POINT |
Point Symmetry | C1 |
Map-Model Fitting and Refinement | |||||
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Id | 1 (1MMS, 1CTF, 1ELO) | ||||
Refinement Space | REAL | ||||
Refinement Protocol | FLEXIBLE FIT | ||||
Refinement Target | The X-ray crystallographic structure of the EF-G individual domains were fitted into the cryo-EM map of the 70S*EF-G-UG*GDP*Fusidic acid complex using O. The G' domain within domain I was separately fitted, using a combination of manual rigid-body docking and flexible docking approaches, and taking into consideration both the cryo-EM envelope and the positional constraints imposed by the UG density. X-ray crystallographic structures of the N-terminal domain of protein L11 and C-terminal domain of protein L7/L12 were fitted as rigid bodies. | ||||
Overall B Value | |||||
Fitting Procedure | |||||
Details | METHOD--A COMBINATION OF MANUAL RIGID-BODY DOCKING AND FLEXIBLE DOCKING REFINEMENT PROTOCOL--A COMBINATION OF MANUAL RIGID-BODY DOCKING AND FLEXIBLE ... |
Data Acquisition | |||||||||
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Detector Type | KODAK SO-163 FILM | ||||||||
Electron Dose (electrons/Å**2) | 20 |
Imaging Experiment | 1 |
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Date of Experiment | 2004-11-09 |
Temperature (Kelvin) | 93 |
Microscope Model | FEI TECNAI F20 |
Minimum Defocus (nm) | -0.7 |
Maximum Defocus (nm) | -3.5 |
Minimum Tilt Angle (degrees) | |
Maximum Tilt Angle (degrees) | |
Nominal CS | 2 |
Imaging Mode | BRIGHT FIELD |
Specimen Holder Model | |
Nominal Magnification | 50000 |
Calibrated Magnification | 50760 |
Source | FIELD EMISSION GUN |
Acceleration Voltage (kV) | 200 |
Imaging Details |
EM Software | ||
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Task | Software Package | Version |
MODEL FITTING | OTHER | |
RECONSTRUCTION | SPIDER |
Image Processing | ||||
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CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
CTF CORRECTION OF 3D MAPS BY WIENER FILTRATION |