2FHB
Crystal Structure Analysis of Klebsiella pneumoniae pullulanase complexed with maltose
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6 | 293 | 15-25% polyethyleneglycol 6000 in 0.2M magnesium acetate, 0.2M sodium acetate buffer, The crystal was soaked with 300mM maltose for 30min at 20 deg.C, followed by flash-freezing in a nitrogen gas stream at 100K without any cryo-protectant., pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.39 | 48.48 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 150.258 | α = 90 |
b = 60.601 | β = 114.429 |
c = 135.104 | γ = 90 |
Symmetry | |
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Space Group | C 1 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 | IMAGE PLATE | RIGAKU RAXIS IV | 2000-05-13 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SPRING-8 BEAMLINE BL24XU | 0.836 | SPring-8 | BL24XU |
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 | 1.7 | 50 | 80.1 | 0.091 | 11.3 | 3.66 | 122914 | 98472 | 1 | 16.8 |
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) | |||||||||||
1.7 | 1.8 | 44.5 | 0.236 | 2.8 | 1.45 | 8565 |
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 | MIR | THROUGHOUT | 1.8 | 14.96 | 89745 | 9010 | 87.4 | 0.172 | 0.172 | 0.205 | RANDOM | 36.7 |
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] | |
-2.48 | 9.46 | -5.29 | 7.76 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 23.4 |
c_scangle_it | 2.47 |
c_mcangle_it | 1.73 |
c_scbond_it | 1.73 |
c_angle_deg | 1.2 |
c_mcbond_it | 1.14 |
c_improper_angle_d | 0.72 |
c_bond_d | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 8128 |
Nucleic Acid Atoms | |
Solvent Atoms | 1002 |
Heterogen Atoms | 51 |
Software
Software | |
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Software Name | Purpose |
CNS | refinement |
PHASES | phasing |