2HBN
Crystallization of the Tl+-form of the Oxytricha nova G-quadruplex
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | NSLS BEAMLINE X25 |
| Synchrotron site | NSLS |
| Beamline | X25 |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2005-10-06 |
| Detector | ADSC QUANTUM 315 |
| Wavelength(s) | 0.979 |
| Spacegroup name | P 21 21 21 |
| Unit cell lengths | 27.375, 48.210, 96.198 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 43.110 - 1.550 |
| Rwork | 0.226 |
| R-free | 0.24800 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 1jrn |
| RMSD bond length | 0.010 |
| RMSD bond angle | 1.903 |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Refinement software | REFMAC |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 43.110 | 1.610 |
| High resolution limit [Å] | 1.550 | 1.550 |
| Rmerge | 0.187 | 0.000 |
| Number of reflections | 18241 | |
| <I/σ(I)> | 4.4 | 1 |
| Completeness [%] | 95.0 | 98.1 |
| Redundancy | 3.6 | 3.7 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 291 | 1.5 mM DNA, 50 mM Potassium cacodylate, 10 mM Magnesium acetate, 40 mM Potassium acetate, 5% (v/v) MPD mixed with equal amount of 35% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
Crystallization Reagents
| ID | crystal ID | solution ID | reagent name | concentration | details |
| 1 | 1 | 1 | Potassium cacodylate | ||
| 2 | 1 | 1 | Magnesium acetate | ||
| 3 | 1 | 1 | Potassium acetate | ||
| 4 | 1 | 1 | MPD | ||
| 5 | 1 | 1 | HOH | ||
| 6 | 1 | 2 | MPD | ||
| 7 | 1 | 2 | Potassium acetate | ||
| 8 | 1 | 2 | Potassium cacodylate | ||
| 9 | 1 | 2 | HOH |
