6DK5
The X-ray crystal structure of human endothelin-1, a polypeptide hormone regulator of blood pressure
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | ROTATING ANODE |
| Source details | RIGAKU RU200 |
| Temperature [K] | 298 |
| Detector technology | AREA DETECTOR |
| Collection date | 1997-06-15 |
| Detector | SDMS |
| Wavelength(s) | 1.54 |
| Spacegroup name | P 61 |
| Unit cell lengths | 27.328, 27.328, 79.538 |
| Unit cell angles | 90.00, 90.00, 120.00 |
Refinement procedure
| Resolution | 23.670 - 1.850 |
| R-factor | 0.2079 |
| Rwork | 0.204 |
| R-free | 0.28373 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | 5glh |
| RMSD bond length | 0.011 |
| RMSD bond angle | 1.632 |
| Data reduction software | SDMS |
| Data scaling software | Aimless |
| Phasing software | PHASER |
| Refinement software | REFMAC (5.8.0158) |
Data quality characteristics
| Overall | |
| Low resolution limit [Å] | 80.000 |
| High resolution limit [Å] | 1.850 |
| Rmerge | 0.257 |
| Rmeas | 0.283 |
| Rpim | 0.086 |
| Number of reflections | 2534 |
| <I/σ(I)> | 4.6 |
| Completeness [%] | 99.6 |
| Redundancy | 7.7 |
| CC(1/2) | 0.947 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 310 | 4 uL 15 mg/mL aqueous endothelin + 6 uL reservoir solution (20-25% MPD, 0.2 M MES, pH 6.5) + 2 uL 0.2 M MES, pH 6.5 |
