482D
RELEASE OF THE CYANO MOIETY IN THE CRYSTAL STRUCTURE OF N-CYANOMETHYL-N-(2-METHOXYETHYL)-DAUNOMYCIN COMPLEXED WITH D(CGATCG)
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.5 | 277 | CRYSTALS WERE OBTAINED FROM A SOLUTION THAT CONTAINED MPD, LICL, MGCL2, SODIUM CACODYLATE, COBALT HEXAMINE, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.24 | 44.5 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 28.16 | α = 90 |
b = 28.16 | β = 90 |
c = 53.4 | γ = 90 |
Symmetry | |
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Space Group | P 41 21 2 |
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 | 277 | IMAGE PLATE | MARRESEARCH | COLLIMATOR | 1999-06-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | ENRAF-NONIUS FR571 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 1.54 | 12.6 | 95.5 | 0.046 | 0.046 | 9.6 | 3.9 | 3327 | 15.3 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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) | ||||||||||
1.54 | 1.57 | 92.3 | 0.158 | 0.158 | 3.9 | 3.8 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | SEE REMARK 1 REFERENCE 2 | 1.54 | 12.6 | 2 | 3220 | 136 | 92 | 0.23 | 0.23 | 0.28 | RANDOM | 19.9 |
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 |
x_angle_deg | 1.386 |
x_improper_angle_d | 0.996 |
x_dihedral_angle_d | 0.601 |
x_bond_d | 0.009 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 120 |
Solvent Atoms | 25 |
Heterogen Atoms | 44 |
Software
Software | |
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Software Name | Purpose |
AMoRE | phasing |
X-PLOR | refinement |
MOSFLM | data reduction |
CCP4 | data scaling |