1SK5
The ultra-high resolution structure of d(CTTTTAAAAG)2: modulation of bending by T-A steps and its role in DNA recognition
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | NSLS |
| Synchrotron site | NSLS |
| Temperature [K] | 113 |
| Detector technology | CCD |
| Detector | ADSC QUANTUM 4 |
| Wavelength(s) | 0.9000 |
| Spacegroup name | P 1 21 1 |
| Unit cell lengths | 22.665, 35.664, 28.289 |
| Unit cell angles | 90.00, 101.69, 90.00 |
Refinement procedure
| Resolution | 50.000 - 0.890 |
| R-factor | 0.12631 |
| Rwork | 0.126 |
| R-free | 0.14400 |
| Starting model (for MR) | NONE |
| RMSD bond length | 0.008 |
| RMSD bond angle | 0.026 |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | SHELXD |
| Refinement software | SHELXL-97 |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 50.000 | 0.920 |
| High resolution limit [Å] | 0.890 | 0.890 |
| Number of reflections | 32054 | |
| <I/σ(I)> | 3 | |
| Redundancy | 10.2 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | Calcium acetate, Spermine, MPD, VAPOR DIFFUSION, HANGING DROP, temperature 269K |
Crystallization Reagents
| ID | crystal ID | solution ID | reagent name | concentration | details |
| 1 | 1 | 1 | Calcium acetate | ||
| 2 | 1 | 1 | Spermine | ||
| 3 | 1 | 1 | MPD | ||
| 4 | 1 | 2 | Calcium acetate | ||
| 5 | 1 | 2 | MPD |
