6N1T
Toxoplasma gondii TS-DHFR in complex with selective inhibitor 3
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4EIL |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 4.6 | 293 | Compound 3, NADPH, PDDF, and dUMP were combined with protein and then mixed with 0.2M diammonium citrate pH 4.6 and 15% PEG3350 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.6 | 52.77 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 53.209 | α = 90 |
b = 144.343 | β = 90 |
c = 174.189 | 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 | CCD | ADSC QUANTUM 315 | 2016-09-26 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRF BEAMLINE BL17U | 0.979282 | SSRF | BL17U |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 3.5 | 50 | 62.7 | 0.138 | 0.153 | 0.065 | 12 | 4.7 | 11564 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 3.5 | 3.63 | 66.2 | 0.138 | 0.585 | 0.255 | 0.938 | 4.4 |
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 | 4EIL | 3.5 | 50 | 10949 | 556 | 62.06 | 0.2015 | 0.1983 | 0.2644 | RANDOM | 50.492 |
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] | |
-0.99 | -0.3 | 1.29 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.711 |
r_dihedral_angle_3_deg | 17.987 |
r_dihedral_angle_4_deg | 16.097 |
r_dihedral_angle_1_deg | 5.558 |
r_angle_refined_deg | 1.118 |
r_chiral_restr | 0.066 |
r_bond_refined_d | 0.008 |
r_gen_planes_refined | 0.004 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 8172 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 262 |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
HKL-2000 | data reduction |