1TLD
CRYSTAL STRUCTURE OF BOVINE BETA-TRYPSIN AT 1.5 ANGSTROMS RESOLUTION IN A CRYSTAL FORM WITH LOW MOLECULAR PACKING DENSITY. ACTIVE SITE GEOMETRY, ION PAIRS AND SOLVENT STRUCTURE
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | THE SOLVENT USED WAS 2.5 M AMMONIUM SULPHATE, 0.1 M PHOSPHATE, 1 MM CACL AT PH 5.3. | |||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.99 | 58.81 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 63.7 | α = 90 |
| b = 63.5 | β = 90 |
| c = 68.9 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 21 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | FILM | |||||||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE X31 | 1.009 | EMBL/DESY, Hamburg | X31 |
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||||||
| X-RAY DIFFRACTION | 1.5 | 7 | 0.167 | ||||||||||||||||
| Temperature Factor Modeling | ||||||
|---|---|---|---|---|---|---|
| Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| o_angle_deg | 2.17 |
| o_bond_d | 0.015 |
| o_bond_d_na | |
| o_bond_d_prot | |
| o_angle_d | |
| o_angle_d_na | |
| o_angle_d_prot | |
| o_angle_deg_na | |
| o_angle_deg_prot | |
| o_dihedral_angle_d | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1629 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 25 |
| Heterogen Atoms | 6 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| PROTEIN | model building |
| EREF | refinement |
| FILME | data reduction |
| PROTEIN | data scaling |
| PROTEIN | phasing |
