The crystal structure of an ADP complex of Bacillus subtilis pyridoxal kinase provides evidence for the parralel emergence of enzyme activity during evolution
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1UB0 | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 8.5 | 290 | 28% peg 4000, 0.17M sodium acetate trihydrate, 0.1M Tris HCL (pH 8.5), 10mM MgCl, 10mM ADP, VAPOR DIFFUSION, HANGING DROP, temperature 290K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.27 | 45.86 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 102.499 | α = 90 |
| b = 102.499 | β = 90 |
| c = 251.36 | 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 | 2005-05-09 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU | 1.54 | ||
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 | 2.8 | 94.916 | 99.4 | 0.131 | 0.131 | 5.7 | 3.7 | 33604 | 33604 | 50.3 | |||||||||
| 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) | ||||||||||
| 2.8 | 2.95 | 99.9 | 0.475 | 0.475 | 1.7 | 3.8 | 4844 | ||||||||||||
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 | 1UB0 | 2.8 | 12.87 | 33305 | 33305 | 1688 | 99.43 | 0.225 | 0.225 | 0.222 | 0.22 | 0.274 | 0.27 | RANDOM | 31.436 | ||
| 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 | ||||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 37.85 |
| r_dihedral_angle_4_deg | 25.038 |
| r_dihedral_angle_3_deg | 18.133 |
| r_dihedral_angle_1_deg | 6.295 |
| r_scangle_it | 1.936 |
| r_angle_refined_deg | 1.455 |
| r_scbond_it | 1.145 |
| r_mcangle_it | 0.991 |
| r_mcbond_it | 0.576 |
| r_symmetry_hbond_refined | 0.43 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 9932 |
| Nucleic Acid Atoms | |
| Solvent Atoms | |
| Heterogen Atoms | 135 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| SCALA | data scaling |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| MAR345 | data collection |
| MOSFLM | data reduction |
| CCP4 | data scaling |
| MOLREP | phasing |














