CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 293 | pH 7.50, VAPOR DIFFUSION, HANGING DROP, temperature 293.00K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.96 | 68.9 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 175.93 | α = 90 |
| b = 95.02 | β = 90 |
| c = 81.78 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | C 2 2 21 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 293 | AREA DETECTOR | SDMS | |||||||||
| 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 | 2.6 | 99 | 0.068 | 6.6 | 4.832 | 20826 | 32.8 | ||||||||||||
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 (Depositor) | R-Free (Depositor) | Mean Isotropic B | ||||||||
| X-RAY DIFFRACTION | 2.6 | 10 | 1 | 20826 | 99 | 0.177 | |||||||||||||
| 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 |
| t_pseud_angle | 63.99 |
| t_dihedral_angle_d | 20.84 |
| t_it | 4.58 |
| t_angle_deg | 1.57 |
| t_nbd | 0.067 |
| t_bond_d | 0.015 |
| t_gen_planes | 0.012 |
| t_trig_c_planes | 0.011 |
| t_incorr_chiral_ct | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2646 |
| Nucleic Acid Atoms | 345 |
| Solvent Atoms | 59 |
| Heterogen Atoms | 10 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| TNT | refinement |
| ADSC | data collection |
