2OD9
Structural Basis for Nicotinamide Inhibition and Base Exchange in Sir2 Enzymes
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | SYNCHROTRON |
| Source details | CHESS BEAMLINE A1 |
| Synchrotron site | CHESS |
| Beamline | A1 |
| Temperature [K] | 93 |
| Detector technology | CCD |
| Collection date | 2005-07-15 |
| Detector | ADSC QUANTUM 210 |
| Wavelength(s) | 0.9777 |
| Spacegroup name | P 32 2 1 |
| Unit cell lengths | 105.940, 105.940, 67.100 |
| Unit cell angles | 90.00, 90.00, 120.00 |
Refinement procedure
| Resolution | 28.340 - 2.050 |
| R-factor | 0.245 |
| Rwork | 0.218 |
| R-free | 0.24500 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 1szd |
| RMSD bond length | 0.006 |
| RMSD bond angle | 1.200 |
| Data reduction software | DENZO |
| Data scaling software | SCALEPACK |
| Phasing software | AMoRE |
| Refinement software | CNS |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 30.000 | 2.120 |
| High resolution limit [Å] | 2.050 | 2.050 |
| Rmerge | 0.111 | 0.320 |
| Number of reflections | 27580 | |
| <I/σ(I)> | 13.4 | 5.5 |
| Completeness [%] | 99.9 | 99.6 |
| Redundancy | 6.1 | 5.8 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 298 | 2.0 M Ammonium Sulfate, 0.1 M sodium citrate, 0.2 M potassium/sodium tartrate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
