4GHF
Structure of Y257F variant of Homoprotocatechuate 2,3-Dioxygenase from B.fuscum in complex with 4-Nitrocatechol and dioxygen at 1.67 Ang resolution
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3OJT |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 293 | 13% PEG6000, 0.1M calcium chloride, 0.1M Tris-HCl. Cryoprotectant 25% PEG400. Ligand soaking: 2mM 4-nitrocatechol under aerobic conditions for 1hr prior to cryo-cooling in liquid nitrogen. , pH pH7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.39 | 48.55 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 110.519 | α = 90 |
b = 150.318 | β = 90 |
c = 96.105 | 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 | 100 | PIXEL | PSI PILATUS 6M | 2010-05-17 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SLS BEAMLINE X10SA | 0.9999 | SLS | X10SA |
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 | 1.67 | 96.11 | 99.6 | 0.035 | 13.5 | 4.7 | 184533 | 184533 | -3 |
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 | 1.67 | 1.76 | 0.427 | 2 | 4.8 |
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 | MOLECULAR REPLACEMENT | THROUGHOUT | 3OJT | 1.67 | 89.04 | 175300 | 9169 | 99.53 | 0.15236 | 0.15087 | 0.18052 | RANDOM | 27.656 |
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] | |
-0.01 | -0.02 | 0.03 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 32.722 |
r_dihedral_angle_4_deg | 18.598 |
r_dihedral_angle_3_deg | 12.741 |
r_dihedral_angle_1_deg | 7.083 |
r_angle_refined_deg | 1.616 |
r_angle_other_deg | 0.955 |
r_chiral_restr | 0.111 |
r_bond_refined_d | 0.015 |
r_gen_planes_refined | 0.009 |
r_bond_other_d | 0.001 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 11508 |
Nucleic Acid Atoms | |
Solvent Atoms | 1169 |
Heterogen Atoms | 167 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
XDS | data reduction |
SCALA | data scaling |
REFMAC | phasing |