1WBL
WINGED BEAN LECTIN COMPLEXED WITH METHYL-ALPHA-D-GALACTOSE
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7 | CRYSTALS WERE GROWN BY SITTING DROP METHOD IN WHICH 25 MICROLITERS OF AN 80 MG/ML PROTEIN SOLUTION IN 0.02M PHOSPHATE BUFFER AT PH 7.0, CONTAINING 0.15M SODIUM CHLORIDE, 0.025 (W/V) SODIUM NITRITE, 20 TIMES MOLAR EXCESS OF METHYL-ALPHA-D-GALACTOSE AND 6 TO 7.5% (W/V) PEG8000 WAS EQUILIBRATED AT 20 DEGREE CENTIGRADE WITH A RESERVOIR SOLUTION OF 40% PEG8000 IN THE SAME BUFFER., vapor diffusion - sitting drop |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.29 | 46.3 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 157.585 | α = 90 |
b = 91.908 | β = 90 |
c = 73.283 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 2 |
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 | AREA DETECTOR | SIEMENS | 1992-10-06 |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 |
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 | 2.43 | 12.63 | 77.3 | 0.064 | 2.24 | 29837 | 26.01 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.49 | 2.65 | 40 | 0.215 | 1.8 |
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 (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | FREE R | ERYTHRINA CORALLODENDRON LECTIN (FOR MOLECULAR REPLACEMENT) | 2.5 | 100 | 29837 | 1373 | 77.3 | 0.187 | 0.187 | 0.259 | RANDOM | 21.7 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 27.3 |
x_angle_deg | 1.8 |
x_improper_angle_d | 1.5 |
x_bond_d | 0.01 |
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 | 7287 |
Nucleic Acid Atoms | |
Solvent Atoms | 546 |
Heterogen Atoms | 306 |
Software
Software | |
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Software Name | Purpose |
X-PLOR | model building |
X-PLOR | refinement |
XENGEN | data reduction |
XENGEN | data scaling |
X-PLOR | phasing |