4G0W
Human topoisomerase iibeta in complex with DNA and ametantrone
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3QX3 | PDB ENTRY 3QX3 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.8 | 277 | 100mM magnesium acetate, 50mM 2-(N-morpholino)ethanesulfonic acid pH 5.8, 22% 2-methyl-2,4-pentanediol (MPD) , VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.15 | 60.95 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 80.662 | α = 90 |
b = 176.424 | β = 112.04 |
c = 93.635 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 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 315r | 2012-03-14 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSRRC BEAMLINE BL13B1 | 1.0000 | NSRRC | BL13B1 |
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 | 2.696 | 30 | 99.1 | 0.085 | 12.4 | 3.7 | 66542 | 65943 | 1 | 1 | 43.27 |
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 | 2.7 | 2.75 | 91.7 | 0.424 | 0.424 | 2.52 | 3.1 | 3034 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | PDB ENTRY 3QX3 | 2.696 | 27.49 | 1.37 | 66698 | 65898 | 3340 | 98.8 | 0.1677 | 0.1677 | 0.1652 | 0.2154 | Random | 44.8366 |
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] | |
0.1508 | 0.7989 | -0.0833 | -0.0675 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 17.511 |
f_angle_d | 1.158 |
f_chiral_restr | 0.073 |
f_bond_d | 0.008 |
f_plane_restr | 0.004 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 10704 |
Nucleic Acid Atoms | 820 |
Solvent Atoms | 420 |
Heterogen Atoms | 66 |
Software
Software | |
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Software Name | Purpose |
Blu-Ice | data collection |
PHENIX | model building |
PHENIX | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHENIX | phasing |