3K44
Crystal Structure of Drosophila melanogaster Pur-alpha
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 298 | 50 mM Mes, 200 mM MgCl2, 25% PEG 3350, pH 5.9, VAPOR DIFFUSION, HANGING DROP, temperature 298K | |
2 | VAPOR DIFFUSION, HANGING DROP | 298 | 100 mM HEPES, 200 mM MgCl2, 22% PEG 3350, 1 mM DTT, 1 mM TCEP, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 63.168 | α = 90 |
b = 62.544 | β = 90.01 |
c = 64.479 | γ = 90 |
Symmetry | |
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Space Group | P 1 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 210 | 2008-12-04 | SINGLE WAVELENGTH | |||||||
2 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 315r | 2009-05-01 | M | MAD |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID14-1 | ESRF | ID14-1 | |
2 | SYNCHROTRON | ESRF BEAMLINE ID14-4 | 0.979, 0.979, 0.957 | ESRF | ID14-4 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.1 | 64.479 | 98.9 | 28601 | 4.35 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
2.1 | 2.23 | 94.6 | 0.442 | 0.403 | 4.35 | 5.65 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MAD | 2.1 | 44.46 | 4.35 | 28910 | 28601 | 1500 | 98.9 | 0.223 | 0.222 | 0.24 | RANDOM |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
1.32 | -0.03 | -2.38 | 1.06 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4654 |
Nucleic Acid Atoms | |
Solvent Atoms | 156 |
Heterogen Atoms | 24 |
Software
Software | |
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Software Name | Purpose |
MAR345dtb | data collection |
CRUNCH2 | model building |
REFMAC | refinement |
XDS | data reduction |
XSCALE | data scaling |
CRUNCH2 | phasing |