THE CRYSTAL STRUCTURE OF A CYANOGENIC BETA-GLUCOSIDASE FROM WHITE CLOVER (TRIFOLIUM REPENS L.), A FAMILY 1 GLYCOSYL-HYDROLASE
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 6 | pH 6.0 | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.73 | 54.91 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 70.326 | α = 90 |
| b = 70.326 | β = 90 |
| c = 249.096 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 41 21 2 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | IMAGE PLATE | MARRESEARCH | 1994-04-16 | M | |||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SRS BEAMLINE PX9.6 | SRS | PX9.6 | |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
| 1 | 2.15 | 15 | 88 | 0.057 | 3 | 30663 | 3.5 | ||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Free (Depositor) | Mean Isotropic B | |||||||||
| X-RAY DIFFRACTION | 2.15 | 9 | 27250 | 95 | 0.195 | 0.195 | 0.247 | 12 | |||||||||||
| 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 |
| x_dihedral_angle_d | 16.84 |
| x_improper_angle_d | 2.259 |
| x_scangle_it | 1.266 |
| x_scbond_it | 0.815 |
| x_mcangle_it | 0.761 |
| x_mcbond_it | 0.435 |
| x_bond_d | |
| x_bond_d_na | |
| x_bond_d_prot | |
| x_angle_d | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 3993 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 436 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| DENZO | data reduction |
| ARP/wARP | model building |
| X-PLOR | model building |
| PROLSQ | refinement |
| X-PLOR | refinement |
| X-PLOR | phasing |














