5W20
Crystal Structure of inosine-substituted duplex DNA
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 291 | Droplets (2 uL) containing oligonucleotide (0.23 mM), sodium cacodylate (25 mM, pH 6.5), magnesium acetate (12.5 mM), and 2-methyl-2,4-pentanediol (MPD, 20% v/v) that were equilibrated against a 1 mL reservoir of sodium cacodylate (50 mM, pH 6.5), magnesium acetate (25 mM), and MPD (40%) v/v) |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.05 | 40.08 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 34.19 | α = 90 |
b = 35.043 | β = 90 |
c = 41.336 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | MARMOSAIC 225 mm CCD | 2015-06-22 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-F | 0.97625 | APS | 21-ID-F |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | 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 | 1.36 | 50 | 99.1 | 0.073 | 0.035 | 30.57 | 7.7 | 11019 | 5 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 1.36 | 1.41 | 95 | 0.343 | 0.133 | 7.6 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | 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 | THROUGHOUT | 1.36 | 26.73 | 10415 | 569 | 99.47 | 0.14922 | 0.1475 | 0.1809 | RANDOM | 11.216 |
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] | |
0.33 | -0.59 | 0.26 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_long_range_B_refined | 4.107 |
r_long_range_B_other | 3.628 |
r_angle_other_deg | 1.626 |
r_angle_refined_deg | 1.607 |
r_scangle_other | 1.436 |
r_scbond_it | 1.008 |
r_scbond_other | 1.005 |
r_chiral_restr | 0.09 |
r_gen_planes_refined | 0.036 |
r_bond_refined_d | 0.012 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 400 |
Solvent Atoms | 179 |
Heterogen Atoms | 6 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
MOLREP | phasing |