1AQZ
CRYSTAL STRUCTURE OF A HIGHLY SPECIFIC ASPERGILLUS RIBOTOXIN, RESTRICTOCIN
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | vapor diffusion and microdialysis | 6.8 | A COMBINATION OF VAPOR DIFFUSION AND MICRODIALYSIS TECHNIQUES WERE USED TO CRYSTALLIZE RESTRICTOCIN. THE FINAL MOTHER LIQUOR CONSISTS OF 60% ETHANOL, 10MM SODIUM PHOSPHATE, PH6.8. THE PROTEIN CONCENTRATION IS 10MG/ML., vapor diffusion and microdialysis |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.29 | 46 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 50.24 | α = 90 |
b = 82.16 | β = 100.5 |
c = 38.04 | 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 | 298 | IMAGE PLATE | FUJI | MIRROR | 1994-08-25 | L |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X26C | 0.7, 2.05 | NSLS | X26C |
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 | 1.7 | 8 | 85.6 | 0.039 | 8 | 28328 | 2 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1.7 | 1.78 | 54.8 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | SINGLE ISOMORPHOUS REPLACEMENT AND ANOMALOUS SCATTERING | THROUGHOUT | 1.7 | 8 | 2 | 28328 | 2232 | 85.6 | 0.237 | 0.237 | 0.177 | RANDOM | 19.9 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 27.1 |
x_angle_deg | 2.02 |
x_improper_angle_d | 1.8 |
x_bond_d | 0.018 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2272 |
Nucleic Acid Atoms | |
Solvent Atoms | 205 |
Heterogen Atoms | 15 |
Software
Software | |
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Software Name | Purpose |
LaueView | data collection |
LaueView | data reduction |
PHASES | phasing |
X-PLOR | model building |
X-PLOR | refinement |
LaueView | data scaling |
X-PLOR | phasing |