Crystal Structure of Mandelate Racemase/Muconate Lactonizing Enzyme from Bacillus Subtilis complexed with MG++ at 1.8 A
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1MUC | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 5.5 | 294 | 100mM Bis-Tris, pH 5.5, 15% PEG 3350, 200mM Magnesium Chloride, VAPOR DIFFUSION, SITTING DROP, temperature 294K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.23 | 44.8 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 112.417 | α = 90 |
| b = 110.654 | β = 105.77 |
| c = 129.308 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 1 21 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | CCD | MAR CCD 165 mm | SGX-CAT | 2006-02-09 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 31-ID | 0.9793 | APS | 31-ID |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 1.884 | 27.948 | 86.8 | 0.127 | 0.127 | 5 | 3.2 | 245740 | 213305 | 25.7 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1.88 | 1.98 | 69.6 | 69.6 | 0.016 | 0.01645 | 0.4 | 2.8 | 24866 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 1MUC | 1.89 | 27.95 | 245740 | 209379 | 10531 | 85.7 | 0.192 | 0.192 | 0.189 | 0.19 | 0.253 | 0.25 | RANDOM | 25.791 | ||
| 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] | |
| -0.01 | -0.01 | |||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 35.305 |
| r_dihedral_angle_4_deg | 20.182 |
| r_dihedral_angle_3_deg | 16.378 |
| r_dihedral_angle_1_deg | 6.515 |
| r_scangle_it | 4.701 |
| r_scbond_it | 3.147 |
| r_mcangle_it | 1.919 |
| r_angle_refined_deg | 1.87 |
| r_mcbond_it | 1.288 |
| r_nbtor_refined | 0.315 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 23911 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 1710 |
| Heterogen Atoms | 11 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SCALA | data scaling |
| PHASER | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| MAR345 | data collection |
| CCP4 | data scaling |














