3N5G
Crystal Structure of histidine-tagged human thymidylate synthase
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1YPV | PDB ENTRY 1YPV |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.3 | 293 | 30% saturated Ammonium Sulfate + 20mM BME + 0.1M TRIS pH8.3, VAPOR DIFFUSION, SITTING DROP, temperature 293.0K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.96 | 58.51 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 96.07 | α = 90 |
b = 96.07 | β = 90 |
c = 83.2 | γ = 120 |
Symmetry | |
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Space Group | P 31 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 | CCD | ADSC QUANTUM 210 | 2008-04-20 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID14-1 | 0.934 | ESRF | ID14-1 |
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 | 2.27 | 41.6 | 100 | 0.07 | 0.07 | 26 | 10.8 | 20905 | 2 | 39.8 |
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 | 2.27 | 2.39 | 100 | 0.351 | 0.351 | 7.1 | 11 | 2988 |
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 (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1YPV | 2.27 | 41.6 | 20905 | 19806 | 1069 | 99.98 | 0.16808 | 0.16622 | 0.20149 | RANDOM | 43.509 |
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 | 0.01 | -0.01 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 39.775 |
r_dihedral_angle_3_deg | 17.367 |
r_dihedral_angle_4_deg | 13.036 |
r_dihedral_angle_1_deg | 6.46 |
r_scangle_it | 5.367 |
r_scbond_it | 3.503 |
r_mcangle_it | 2.184 |
r_angle_refined_deg | 1.899 |
r_mcbond_it | 1.15 |
r_chiral_restr | 0.144 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2140 |
Nucleic Acid Atoms | |
Solvent Atoms | 149 |
Heterogen Atoms | 15 |
Software
Software | |
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Software Name | Purpose |
MOLREP | phasing |
REFMAC | refinement |
MOSFLM | data reduction |
SCALA | data scaling |