3QAU
3-Hydroxy-3-MethylGlutaryl-Coenzyme A Reductase from Streptococcus pneumoniae
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1QAX | PDB ENTRY 1QAX |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 297 | 2.0M Ammonium Sulfate, 6% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 297K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.72 | 54.72 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 73.355 | α = 90 |
b = 90.641 | β = 90 |
c = 162.914 | γ = 90 |
Symmetry | |
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Space Group | C 2 2 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 | CCD | OXFORD ONYX CCD | 2010-05-24 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SEALED TUBE | OXFORD DIFFRACTION ENHANCE ULTRA | 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 | 2.3 | 25.24 | 99.2 | 0.06 | 0.065 | 20.3 | 5.6 | 24371 | 24371 | 2 | 2 | 22.3 |
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) | ||||||||||
2.3 | 2.42 | 95.2 | 0.166 | 0.201 | 5.6 | 2.7 | 3374 |
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 1QAX | 2.3 | 25.24 | 23100 | 23100 | 1239 | 99.2 | 0.18098 | 0.18098 | 0.17958 | 0.20746 | RANDOM | 22.548 |
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] | |
-0.71 | -0.58 | 1.3 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.334 |
r_dihedral_angle_4_deg | 15.004 |
r_dihedral_angle_3_deg | 13.642 |
r_dihedral_angle_1_deg | 4.92 |
r_scangle_it | 1.957 |
r_scbond_it | 1.116 |
r_angle_refined_deg | 0.98 |
r_mcangle_it | 0.868 |
r_mcbond_it | 0.458 |
r_chiral_restr | 0.067 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3222 |
Nucleic Acid Atoms | |
Solvent Atoms | 184 |
Heterogen Atoms | 47 |
Software
Software | |
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Software Name | Purpose |
CrysalisPro | data collection |
MOLREP | phasing |
REFMAC | refinement |
CrysalisPro | data reduction |
SCALA | data scaling |