2GOT
Crystal structure of d(GCGAACGC): two types of bulge-containing duplexes
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 277 | 40mM sodium cacodylate, 12mM spermine tetrahydrochloride, 80mM sodium chloride, 10%(v/v) 2-methyl-2,4-pentanediol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.24 | 43.7 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 26.83 | α = 90 |
b = 26.83 | β = 90 |
c = 226.325 | γ = 120 |
Symmetry | |
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Space Group | P 61 2 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 | 100 | CCD | ADSC QUANTUM 4 | 2000-11-19 | M | MAD |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | PHOTON FACTORY BEAMLINE BL-18B | 1.00, 0.91955, 0.92010 | Photon Factory | BL-18B |
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 | 2.602 | 25.147 | 93 | 0.054 | 0.054 | 8.2 | 15.6 | 1730 |
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) | ||||||||||
2.6 | 2.74 | 64.9 | 0.266 | 0.266 | 2.5 | 12.7 | 163 |
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 | 2.602 | 25.147 | 1726 | 158 | 92.9 | 0.254 | 0.253 | 0.269 | RANDOM | 30.435 |
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] | |
1.36 | 0.68 | 1.36 | -2.04 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_scangle_it | 4.841 |
r_scbond_it | 3.061 |
r_angle_refined_deg | 2.654 |
r_angle_other_deg | 2.045 |
r_symmetry_vdw_other | 0.42 |
r_nbd_other | 0.221 |
r_xyhbond_nbd_refined | 0.185 |
r_chiral_restr | 0.182 |
r_nbd_refined | 0.171 |
r_symmetry_hbond_refined | 0.12 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 378 |
Solvent Atoms | 5 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
SCALA | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
DPS | data reduction |
MOSFLM | data reduction |
CCP4 | data scaling |
SOLVE | phasing |