1Q8F
Crystal Structure of the E.coli pyrimidine nucleoside hydrolase yeiK
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1MAS | PDB entry 1MAS |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 295 | PEGMME 3350, methanol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.32 | 47.02 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 44.808 | α = 112.95 |
b = 85.707 | β = 101.95 |
c = 90.678 | γ = 85.92 |
Symmetry | |
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Space Group | P 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 4 | Mirror | 2003-05-04 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID14-2 | 0.933 | ESRF | ID14-2 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 1.7 | 81.6 | 91.5 | 0.046 | 9.5 | 2 | 122468 | -3 | -3 | 16.9 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 1.7 | 1.79 | 63.8 | 0.221 | 3 | 1.9 | 12529 |
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 1MAS | 1.7 | 43.83 | 121220 | 121220 | 1247 | 91.53 | 0.1534 | 0.15348 | 0.15331 | 0.16989 | RANDOM | 15.208 |
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] | |
0.15 | 0.51 | -0.28 | -0.32 | 0.18 | 0.12 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_1_deg | 5.855 |
r_scangle_it | 3.336 |
r_scbond_it | 2.003 |
r_angle_refined_deg | 1.307 |
r_mcangle_it | 1.011 |
r_mcbond_it | 0.566 |
r_symmetry_hbond_refined | 0.201 |
r_nbd_refined | 0.2 |
r_xyhbond_nbd_refined | 0.14 |
r_symmetry_vdw_refined | 0.132 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 9260 |
Nucleic Acid Atoms | |
Solvent Atoms | 1055 |
Heterogen Atoms | 100 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
MOSFLM | data reduction |
CCP4 | data scaling |
MOLREP | phasing |