274D
CRYSTAL STRUCTURE OF A COVALENT DNA-DRUG ADDUCT: ANTHRAMYCIN BOUND TO C-C-A-A-C-G-T-T-G-G, AND A MOLECULAR EXPLANATION OF SPECIFICITY
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 277 | VAPOR DIFFUSION, SITTING DROP, temperature 277.00K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.42 | 49.11 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 23.95 | α = 90 |
b = 23.95 | β = 90 |
c = 88.89 | γ = 120 |
Symmetry | |
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Space Group | P 32 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 | IMAGE PLATE | RIGAKU RAXIS II |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.3 | 1212 | 2 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | 2.3 | 8 | 2 | 1212 | 90 | 0.212 |
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] | |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
n_phos_angle_it | 6.743 |
n_sugar_angle_it | 6.534 |
n_phos_bond_it | 6.213 |
n_sugar_bond_it | 5.102 |
n_chiral_restr | 0.207 |
n_xhyhbond_nbd | 0.183 |
n_multtor_nbd | 0.115 |
n_singtor_nbd | 0.088 |
n_phos_bond_angle_d | 0.061 |
n_sugar_bond_angle_d | 0.058 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 202 |
Solvent Atoms | 22 |
Heterogen Atoms | 22 |
Software
Software | |
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Software Name | Purpose |
NUCLSQ | refinement |