4QLN
structure of ydao riboswitch binding with c-di-dAMP
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 293 | 0.1 M Na-Bicine, pH 8.7-9.2 and 2.6-3.2 M (NH4)2SO4, VAPOR DIFFUSION, SITTING DROP, temperature 293K | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.02 | 59.32 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 77.874 | α = 90 |
| b = 87.051 | β = 90 |
| c = 144.553 | 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 | 100 | M | SINGLE WAVELENGTH | |||||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 24-ID-E | APS | 24-ID-E | |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.65 | 50 | 1 | 49287 | 1.1 | ||||||||||||||
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 | R-Free | Mean Isotropic B | ||||||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | 2.65 | 45.25 | 1.34 | 13780 | 732 | 99.4 | 0.221 | 0.217 | 0.29 | |||||||||
| 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 |
| f_dihedral_angle_d | 24.397 |
| f_angle_d | 1.82 |
| f_chiral_restr | 0.166 |
| f_bond_d | 0.015 |
| f_plane_restr | 0.011 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | |
| Nucleic Acid Atoms | 2514 |
| Solvent Atoms | 7 |
| Heterogen Atoms | 86 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| XDS | data scaling |
| PHASER | phasing |
| PHENIX | refinement |
| XDS | data reduction |
