3D1G
Structure of a small molecule inhibitor bound to a DNA sliding clamp
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2POL |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 6.1 | 295 | 25% PEG400, 100 mM MES pH 6.1, 100 mM calcium chloride, and 3% DMSO, VAPOR DIFFUSION, temperature 295K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.51 | 51.01 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 35.72 | α = 110.24 |
b = 79.395 | β = 100.58 |
c = 80.505 | γ = 99.46 |
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 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X4A | 0.959 | NSLS | X4A |
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 | 1.52 | 50 | 91.4 | 0.056 | 10.9 | 96917 | 20.7 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | 2POL | 1.64 | 34.21 | 86961 | 8708 | 89.7 | 0.256 | 0.296 | 27.181 |
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] | |
5.41 | 3.42 | 2.06 | -1.37 | 2.63 | -4.04 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 24.7 |
c_angle_deg | 1.2 |
c_improper_angle_d | 0.76 |
c_bond_d | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 5688 |
Nucleic Acid Atoms | |
Solvent Atoms | 797 |
Heterogen Atoms | 48 |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
CNS | refinement |
PDB_EXTRACT | data extraction |
ADSC | data collection |
CNS | phasing |