6GE7
Thermodynamic, Crystallographic and Computational Studies of Non Mammalian Fatty Acid Binding to Bovine b-Lactoglobulin
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 293.2 | protein 20 mg/mL, ligand 10mM, 20mM Tris buffer, pH 8, which were mixed with 4 microliter of well solution. Drops were equilibrated against 1 mL of well solution containing 1.43 M sodium citrate and 0.1M Hepes, pH 7.5 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.57 | 52.22 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 53.999 | ¦Á = 90 |
b = 53.999 | ¦Â = 90 |
c = 111.929 | ¦Ã = 120 |
Symmetry | |
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Space Group | P 32 2 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 | MAR CCD 165 mm | 2000-07-27 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SRS BEAMLINE PX9.5 | 1.2 | SRS | PX9.5 |
Data Collection
Overall | |||||||||||||||||||
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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 | 2.3 | 25 | 98.9 | 18.3 | 9.4 | 8916 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1 | 2.3 | 2.34 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | 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 | THROUGHOUT | 2.3 | 24.33 | 8317 | 418 | 98.36 | 0.19456 | 0.19191 | 0.24778 | RANDOM | 47.083 |
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] | |
-0.27 | -0.14 | -0.27 | 0.88 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.752 |
r_dihedral_angle_3_deg | 16.499 |
r_dihedral_angle_4_deg | 14.511 |
r_dihedral_angle_1_deg | 8.078 |
r_long_range_B_refined | 6.23 |
r_long_range_B_other | 6.114 |
r_mcangle_it | 3.527 |
r_mcangle_other | 3.525 |
r_scangle_other | 3.46 |
r_mcbond_it | 2.082 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1280 |
Nucleic Acid Atoms | |
Solvent Atoms | 77 |
Heterogen Atoms | 21 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
DENZO | data reduction |
SORTRF | data scaling |
MOLREP | phasing |