7YOD
Crystal structure of A68P single mutant of O-acetylserine sulfhydrylase from Haemophilus influenzae in complex with high-affinity inhibitory peptide from serine acetyltransferase of Salmonella typhimurium at 2.1 A
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.4 | 278 | 0.1M HEPES, 1.3M Sodium citrate |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.2 | 44.14 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 112.599 | α = 90 |
b = 112.599 | β = 90 |
c = 45.822 | 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 | 293 | IMAGE PLATE | MAR scanner 345 mm plate | 2012-05-26 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
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 | 2.101 | 39.81 | 99.95 | 1 | 37.22 | 1.1 | 16969 | 32.49 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.101 | 2.176 | 1 |
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 | 2.101 | 39.81 | 16967 | 824 | 99.959 | 0.224 | 0.222 | 0.2553 | 37.309 |
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] | |
-2.031 | -2.031 | 4.062 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 30.146 |
r_dihedral_angle_4_deg | 16.543 |
r_dihedral_angle_3_deg | 15.131 |
r_lrange_it | 7.649 |
r_dihedral_angle_1_deg | 6.322 |
r_scangle_it | 5.174 |
r_mcangle_it | 4.039 |
r_scbond_it | 3.714 |
r_mcbond_it | 3.001 |
r_angle_refined_deg | 1.519 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2307 |
Nucleic Acid Atoms | |
Solvent Atoms | 37 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data reduction |
SCALA | data scaling |
PHASER | phasing |