7YOI
Crystal structure of I88L single mutant of O-acetylserine sulfhydrylase from Haemophilus influenzae in complex with high-affinity inhibitory peptide from serine acetyltransferase of Salmonella typhimurium at 2.14 A
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 278 | 0.1M HEPES, 1.3M Sodium Citrate |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.15 | 42.8 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 112.97 | α = 90 |
b = 112.97 | β = 90 |
c = 44.52 | γ = 90 |
Symmetry | |
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Space Group | I 41 |
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 | IMAGE PLATE | MAR scanner 345 mm plate | 2012-09-10 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU | 1.54179 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | CC (Half) | 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 | 2.14 | 41.454 | 97.64 | 0.873 | 73.27 | 14.6 | 15711 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.14 | 2.217 | 76.8 | 0.77 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 1Y7L | 2.14 | 41.454 | 15361 | 767 | 97.636 | 0.222 | 0.2198 | 0.2714 | 30.896 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
-3.947 | -3.947 | 7.894 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 31.42 |
r_dihedral_angle_3_deg | 16.279 |
r_dihedral_angle_4_deg | 13.959 |
r_lrange_it | 6.874 |
r_dihedral_angle_1_deg | 6.656 |
r_scangle_it | 3.573 |
r_mcangle_it | 2.977 |
r_scbond_it | 2.334 |
r_mcbond_it | 1.904 |
r_angle_refined_deg | 1.506 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2294 |
Nucleic Acid Atoms | |
Solvent Atoms | 55 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
iMOSFLM | data reduction |
SCALA | data scaling |
PHASER | phasing |