334D
DEFINING GC-SPECIFICITY IN THE MINOR GROOVE: SIDE-BY-SIDE BINDING OF THE DI-IMIDAZOLE LEXITROPSIN TO C-A-T-G-G-C-C-A-T-G
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.4 | 277 | pH 7.40, VAPOR DIFFUSION, SITTING DROP, temperature 277.00K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.14 | 50 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 36.654 | α = 90 |
b = 42.643 | β = 90 |
c = 34.684 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 278 | IMAGE PLATE | RIGAKU RAXIS II | MIRROR MSC-YALE | 1993-09-15 | M |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU200 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1.8 | 8 | 93 | 0.0374 | 4895 | 21.41 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1.8 | 1.85 | 91.9 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution 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 | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | AN IDEAL HELIX RMS FIT TO BDJ057 | 1.8 | 8 | 1 | 4895 | 92 | 0.2 | 0.2 |
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_bond_it | 4.858 |
n_sugar_angle_it | 4.664 |
n_phos_angle_it | 4.654 |
n_sugar_bond_it | 4.026 |
n_chiral_restr | 0.146 |
n_multtor_nbd | 0.104 |
n_singtor_nbd | 0.085 |
n_phos_bond_angle_d | 0.069 |
n_phos_bond_d | 0.05 |
n_sugar_bond_angle_d | 0.039 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 404 |
Solvent Atoms | 58 |
Heterogen Atoms | 57 |
Software
Software | |
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Software Name | Purpose |
X-PLOR | model building |
NUCLSQ | refinement |
MSC | data reduction |
MSC | data scaling |
X-PLOR | phasing |