4FYX
E. coli Aspartate Transcarbamoylase complexed with dCTP, UTP, and Mg2+
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1ZA1 | PDB ENTRY 1ZA1 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | MICRODIALYSIS | 5.7 | 298 | 40 mM sodium citrate, 1 mM 2-mercaptoethanol, 0.2 mM EDTA, 1.0 mM dCTP, pH 5.7 (crystals soaked in 5 mM UTP and 5 mM Mg2+), MICRODIALYSIS, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.92 | 57.87 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 121.21 | α = 90 |
b = 121.21 | β = 90 |
c = 141.764 | γ = 120 |
Symmetry | |
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Space Group | P 3 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 315 | 2012-01-19 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X29A | 1.075 | NSLS | X29A |
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 | 2.0889 | 50 | 100 | 0.145 | 8.6 | 22.3 | 71745 | 71745 | -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 | 2.0889 | 2.18 | 100 | 0.684 | 20.3 | 7107 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution 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 | PDB ENTRY 1ZA1 | 2.0889 | 49.22 | 71777 | 71741 | 3630 | 99.95 | 0.1676 | 0.1652 | 0.2125 | Random | 39.2654 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 14.029 |
f_angle_d | 1.07 |
f_chiral_restr | 0.077 |
f_bond_d | 0.009 |
f_plane_restr | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 7149 |
Nucleic Acid Atoms | |
Solvent Atoms | 634 |
Heterogen Atoms | 118 |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
PHENIX | refinement |
PDB_EXTRACT | data extraction |
HKL-2000 | data collection |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHENIX | phasing |