1BC2
ZN-DEPENDENT METALLO-BETA-LACTAMASE FROM BACILLUS CEREUS
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 4.5 | HANGING DROP METHOD. PROTEIN WAS DISSOLVED IN 10MM TRIS PH7, 1MM ZINC SULPHATE. WELL SOLUTION CONTAINED 100MM TRIS-HCL PH4.5, 75% AMMONIUM SULPHATE. 6UL DROPS WERE MADE WITH 3UL PROTEIN SOLUTION 50% DILUTED (WATER) WELL SOLUTION., vapor diffusion - hanging drop | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.36 | 41 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 67.63 | α = 90 |
| b = 67.63 | β = 90 |
| c = 178.38 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 31 2 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 135 | IMAGE PLATE | MARRESEARCH | MIRRORS | 1996-03-22 | 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 | 1.9 | 60 | 99.4 | 0.054 | 14.07 | 2.3 | 37917 | 2 | 28.04 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
| 1.9 | 1.95 | 99.7 | 0.289 | 6.4 | 2 | ||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||||
| X-RAY DIFFRACTION | MULTIPLE ISOMORPHOUS REPLACEMENT | THROUGHOUT | 1.9 | 8 | 36523 | 2260 | 97.1 | 0.208 | 0.208 | 0.279 | SHELLS | 31.33 | |||||||
| 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 | 24.09 |
| x_scangle_it | 4.81 |
| x_mcangle_it | 3.04 |
| x_scbond_it | 2.61 |
| x_mcbond_it | 1.64 |
| x_angle_deg | 1.35 |
| x_improper_angle_d | 1.238 |
| x_bond_d | 0.007 |
| x_bond_d_na | |
| x_bond_d_prot | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 3346 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 400 |
| Heterogen Atoms | 14 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SOLOMON | phasing |
| X-PLOR | model building |
| X-PLOR | refinement |
| DENZO | data reduction |
| CCP4 | data scaling |
| SCALA | data scaling |
| TRUNCATE | data scaling |
| X-PLOR | phasing |
