2ONW
Structure of SSTSSA, a fibril forming peptide from Bovine Pancreatic Ribonuclease (RNase A, residues 15-20)
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | SYNCHROTRON |
Source details | ESRF BEAMLINE ID13 |
Synchrotron site | ESRF |
Beamline | ID13 |
Temperature [K] | 100 |
Detector technology | CCD |
Collection date | 2005-01-01 |
Detector | MARRESEARCH |
Spacegroup name | P 21 21 21 |
Unit cell lengths | 42.008, 4.830, 12.888 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 21.000 - 1.510 |
R-factor | 0.159 |
Rwork | 0.157 |
R-free | 0.21900 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 5 residue beta strand SSTSA with the C-terminal alanine absent |
RMSD bond length | 0.004 |
RMSD bond angle | 1.087 |
Data reduction software | DENZO |
Data scaling software | SCALEPACK |
Phasing software | X-PLOR |
Refinement software | REFMAC |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 80.000 | 1.620 |
High resolution limit [Å] | 1.500 | 1.500 |
Rmerge | 0.174 | 0.434 |
Number of reflections | 474 | |
<I/σ(I)> | 3.9 | |
Completeness [%] | 89.3 | 93.3 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 291 | Peptide concentration: 30 mg/ml, Reservoir: 0.1M HEPES-Na, pH 7.5, 10% v/v isopropanol, 20% PEG4000, VAPOR DIFFUSION, HANGING DROP, temperature 291K |