2FTM
Crystal structure of trypsin complexed with the BPTI variant (Tyr35->Gly)
Experimental procedure
| Experimental method | SINGLE WAVELENGTH |
| Source type | ROTATING ANODE |
| Source details | ENRAF-NONIUS FR591 |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2002-08-04 |
| Detector | NONIUS KAPPA CCD2000 |
| Wavelength(s) | 1.5418 |
| Spacegroup name | I 2 2 2 |
| Unit cell lengths | 74.591, 81.736, 123.595 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 20.000 - 1.650 |
| R-factor | 0.2078 |
| Rwork | 0.207 |
| R-free | 0.21950 |
| Structure solution method | MOLECULAR REPLACEMENT |
| Starting model (for MR) | PDB ID 2PTC |
| RMSD bond length | 0.005 |
| RMSD bond angle | 1.300 |
| Data reduction software | HKL-2000 |
| Data scaling software | SCALEPACK |
| Phasing software | CNS |
| Refinement software | CNS |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 20.000 | 1.710 |
| High resolution limit [Å] | 1.650 | 1.650 |
| Rmerge | 0.046 | 0.232 |
| Number of reflections | 45459 | |
| <I/σ(I)> | 21.9 | 5.6 |
| Completeness [%] | 99.7 | 97.1 |
| Redundancy | 10 | 4 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 8 | 298 | 10 mM calcium chloride, 0.1 M HEPES, 2.0 M ammonium sulfate, 0.02% sodium azide; 20% ethylene glycol added upon harvesting and prior to freezing, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
