1F6D
THE STRUCTURE OF UDP-N-ACETYLGLUCOSAMINE 2-EPIMERASE FROM E. COLI.
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 5.3 | 298 | 13 % PEG 8000, 0.3 M NaCl, 0.1 M sodium citrate, pH 5.3, VAPOR DIFFUSION, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.4 | 48.7 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 91.008 | α = 90 |
b = 94.541 | β = 109.13 |
c = 100.97 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | BRANDEIS | 1999-02-20 | M | SINGLE WAVELENGTH | ||||||
2 | 1 | 100 | CCD | BRANDEIS | 1999-02-20 | |||||||||
3 | 1 | 100 | CCD | BRANDEIS | 1999-02-20 |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X12C | NSLS | X12C | |
2 | SYNCHROTRON | NSLS BEAMLINE X12C | NSLS | X12C | |
3 | SYNCHROTRON | NSLS BEAMLINE X12C | NSLS | X12C |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
1 | 2.5 | 30 | 93.1 | 0.051 | 21.6 | 3.2 | 50792 | 50775 | -3 | -3 | 29.3 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.5 | 2.54 | 89 | 0.21 | 2.9 | 2386 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||
X-RAY DIFFRACTION | THROUGHOUT | 2.5 | 30.32 | 50775 | 49090 | 4955 | 87.6 | 0.198 | 0.198 | 0.198 | 0.1912 | 0.271 | 0.2665 | RANDOM | 35.8 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 23.2 |
c_scangle_it | 2.93 |
c_mcangle_it | 2.39 |
c_scbond_it | 2.03 |
c_mcbond_it | 1.41 |
c_angle_deg | 1.3 |
c_improper_angle_d | 0.94 |
c_bond_d | 0.009 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 11801 |
Nucleic Acid Atoms | |
Solvent Atoms | 765 |
Heterogen Atoms | 108 |
Software
Software | |
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Software Name | Purpose |
SOLVE | phasing |
CNS | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |