1I4R
CRYSTAL STRUCTURE OF STAPHYLOCOCCAL ENTEROTOXIN C2 AT 100K CRYSTALLIZED AT PH 6.5
Experimental 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 | 1997-07-17 |
Detector | ADSC QUANTUM |
Wavelength(s) | 0.9780 |
Spacegroup name | P 43 21 2 |
Unit cell lengths | 42.730, 42.730, 288.540 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 50.000 - 2.100 |
R-factor | 0.201 |
Rwork | 0.201 |
R-free | 0.24300 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1se2 |
RMSD bond length | 0.006 |
RMSD bond angle | 1.300 |
Data scaling software | SCALEPACK |
Phasing software | AMoRE |
Refinement software | CNS (0.9) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 50.000 | 2.100 |
High resolution limit [Å] | 2.070 | 2.070 |
Rmerge | 0.033 | 0.065 * |
Total number of observations | 66686 * | |
Number of reflections | 14722 | |
<I/σ(I)> | 27.4 | |
Completeness [%] | 83.4 | 29.7 |
Redundancy | 4.5 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | PEG 8000, magnesium acetate, cacodylate, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 100K |
Crystallization Reagents in Literatures
ID | crystal ID | solution | reagent name | concentration (unit) | details |
1 | 1 | drop | protein | 5 (mg/ml) | |
2 | 1 | reservoir | PEG8000 | 20 (%) | |
3 | 1 | reservoir | magnesium acetate | 0.2 (M) | |
4 | 1 | reservoir | sodium cacodylate | 0.1 (M) |