1H7A
Structural basis for allosteric substrate specificity regulation in class III ribonucleotide reductases: NRDD in complex with dATP
Replaces: 1B8BExperimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | NSLS BEAMLINE X12B |
Synchrotron site | NSLS |
Beamline | X12B |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 1998-07-15 |
Detector | ADSC CCD |
Spacegroup name | P 43 21 2 |
Unit cell lengths | 98.360, 98.360, 244.120 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 30.000 * - 2.750 |
R-factor | 0.216 * |
Rwork | 0.215 |
R-free | 0.25900 * |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1B8B.PDB |
RMSD bond length | 0.013 |
RMSD bond angle | 23.200 * |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | CNS |
Refinement software | CNS (1.0) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 30.000 * | 2.810 |
High resolution limit [Å] | 2.750 | 2.750 |
Rmerge | 0.090 | 0.358 |
Number of reflections | 29688 | |
<I/σ(I)> | 8.7 | 1 |
Completeness [%] | 92.0 | 70 |
Redundancy | 2.6 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | Vapor diffusion, hanging drop * | 7.5 | Logan, D.T., (1999) Science, 283, 1499. * |
Crystallization Reagents in Literatures
ID | crystal ID | solution | reagent name | concentration (unit) | details |
1 | 1 | reservoir | HEPES-NaOH | 0.1 (M) | pH7.5 |
2 | 1 | reservoir | 0.2 (M) | ||
3 | 1 | reservoir | dithiothreitol | 5-7 (mM) | |
4 | 1 | reservoir | PEG400 | 26-32 (%) | |
5 | 1 | drop | protein | 20-30 (mg/ml) |