465D
STRUCTURE OF THE TOPOISOMERASE II POISON BOUND TO DNA
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 285 | 0.5 MM DNA, 20 MM SODIUM CACODYLATE BUFFER, PH 6.5, 4 MM MAGNESIUM ACETATE, 1 MM COBALT(II) CHLORIDE, 0.33 MM SPERMINE.4HCL, 1 MM 9-AMINO-[N-(2- DIMETHYLAMINO)ETHYL]ACRIDINE-4-CARBOXAMIDE AND 9% MPD EQUILIBRATED AGAINST 1 ML OF A SOLUTION OF 45% MPD IN WATER, VAPOR DIFFUSION, SITTING DROP, temperature 285K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.76 | 55.41 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 30.161 | α = 90 |
b = 30.161 | β = 90 |
c = 39.692 | γ = 120 |
Symmetry | |
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Space Group | P 64 |
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 | 110 | IMAGE PLATE | RIGAKU RAXIS II | FOCUSING MIRROR | 1997-12-12 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU200 |
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 | 1.6 | 30 | 98.4 | 0.029 | 56.8 | 24.7 | 2763 | 2763 |
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) | |||||||||||
1.6 | 1.66 | 97 | 0.142 | 5 | 5.3 |
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 | ISOMORPHOUS REPLACEMENT | THROUGHOUT | DDF073 | 1.6 | 16 | 2705 | 2705 | 225 | 98.5 | 0.1958 | 0.1945 | 0.1934 | 0.256 | RANDOM |
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] | |
Coordinate Error | ||
---|---|---|
Structure Solution Method | Refinement High Resolution | Refinement Low Resolution |
1 | 182.5 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
s_similar_dist | 0.038 |
s_from_restr_planes | 0.023 |
s_angle_d | 0.021 |
s_bond_d | 0.01 |
s_zero_chiral_vol | |
s_non_zero_chiral_vol | |
s_anti_bump_dis_restr | |
s_rigid_bond_adp_cmpnt | |
s_similar_adp_cmpnt | |
s_approx_iso_adps |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 120 |
Solvent Atoms | 29 |
Heterogen Atoms | 46 |
Software
Software | |
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Software Name | Purpose |
SHELXS | phasing |
SHELXL-97 | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |