Crystal structure of Escherichia coli enterobactin-specific isochorismate synthase EntC in complex with isochorismate
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 298 | 0.1M MES pH 6.5, 12% PEG 20,000, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.65 | 53.56 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 62.469 | α = 90 |
| b = 104.795 | β = 90 |
| c = 140.014 | 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 | M | SINGLE WAVELENGTH | ||||||||||
| 2 | 1 | x-ray | M | MAD | ||||||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE ID29 | 1.0 | ESRF | ID29 |
| 2 | SYNCHROTRON | SRS BEAMLINE PX10.1 | 0.979 | SRS | PX10.1 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 2.3 | 42.6 | 99 | 41738 | 41380 | 2 | 2 | ||||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
| 1,2 | 2.3 | 99 | |||||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | 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 | SIR | THROUGHOUT | 2.3 | 42.6 | 2 | 41380 | 39292 | 2088 | 99.7 | 0.20271 | 0.19991 | 0.2 | 0.25559 | 0.25 | RANDOM | 47.326 | |||
| 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] | |
| -0.37 | 0.66 | -0.29 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 31.48 |
| r_dihedral_angle_4_deg | 21.234 |
| r_dihedral_angle_3_deg | 19.147 |
| r_scangle_it | 7.475 |
| r_dihedral_angle_1_deg | 6.262 |
| r_scbond_it | 5.488 |
| r_mcangle_it | 4.131 |
| r_mcbond_it | 2.739 |
| r_angle_refined_deg | 1.443 |
| r_symmetry_hbond_refined | 0.412 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 5856 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 262 |
| Heterogen Atoms | 36 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| ADSC | data collection |
| SHARP | phasing |
| REFMAC | refinement |
| DENZO | data reduction |
| SCALEPACK | data scaling |














