1LOW
X-ray structure of the H40A mutant of Ribonuclease T1 complexed with 3'-guanosine monophosphate
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | ROTATING ANODE |
Source details | RIGAKU RU200 |
Temperature [K] | 293 |
Detector technology | IMAGE PLATE |
Collection date | 2001-03-21 |
Detector | MARRESEARCH |
Wavelength(s) | 1.5418 |
Spacegroup name | P 21 21 21 |
Unit cell lengths | 40.217, 45.685, 50.136 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 22.800 - 1.900 |
R-factor | 0.21 |
Rwork | 0.206 |
R-free | 0.23000 * |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1rga |
RMSD bond length | 0.006 |
RMSD bond angle | 1.400 * |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | CNS |
Refinement software | CNS |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 15.000 | 1.970 |
High resolution limit [Å] | 1.900 | 1.900 |
Rmerge | 0.102 | 0.785 |
Number of reflections | 7613 * | |
<I/σ(I)> | 14.94 | 3.7 |
Completeness [%] | 99.3 * | 98.9 |
Redundancy | 7.5 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.2 * | 20 * | MPD,CaCl2,sodium acetate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystallization Reagents in Literatures
ID | crystal ID | solution | reagent name | concentration (unit) | details |
1 | 1 | drop | protein | 1.5 (mM) | |
2 | 1 | drop | substrate | 3 (mM) | |
3 | 1 | reservoir | 2 (mM) | ||
4 | 1 | reservoir | sodium acetate | 50 (mM) | pH4.2 |
5 | 1 | reservoir | MPD | 42-52 (%) |