3B9A
Crystal structure of Vibrio harveyi chitinase A complexed with hexasaccharide
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3B9E | PDB ENTRY 3B9E |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 288 | 16% (w/v) PEG 4000, 0.1M magnesium chloride, 0.1M HEPES pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 288K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.22 | 44.55 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 63.704 | α = 90 |
b = 83.323 | β = 90 |
c = 106.565 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | RIGAKU RAXIS IV++ | 2006-01-23 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU FR-E+ SUPERBRIGHT | 1.5418 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 1.8 | 30 | 99.7 | 0.07 | 0.074 | 26.3 | 8.5 | 53131 | 53131 | 26.3 | 15.9 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 1.8 | 1.847 | 99 | 0.312 | 0.332 | 6.1 | 8.4 | 7564 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 3B9E | 1.8 | 30 | 53131 | 50392 | 2678 | 99.65 | 0.18223 | 0.18223 | 0.18076 | 0.21013 | RANDOM | 15.433 |
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] | |
0.15 | 0.07 | -0.21 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 37.225 |
r_dihedral_angle_3_deg | 11.961 |
r_dihedral_angle_4_deg | 9.499 |
r_dihedral_angle_1_deg | 5.103 |
r_scangle_it | 1.267 |
r_angle_refined_deg | 0.99 |
r_scbond_it | 0.844 |
r_mcangle_it | 0.637 |
r_mcbond_it | 0.375 |
r_nbtor_refined | 0.304 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4353 |
Nucleic Acid Atoms | |
Solvent Atoms | 690 |
Heterogen Atoms | 85 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
CrystalClear | data collection |
MOSFLM | data reduction |
SCALA | data scaling |
AMoRE | phasing |