Atomic Resolution X-Ray Crystal Structure of a Ruthenocene Conjugated Beta-Lactam Antibiotic in Complex with CTX-M-14 E166A Beta-Lactamase
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2P74 | PDB entry 2P74 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.9 | 293.15 | potassium phosphate |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.01 | 38.7 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 44.899 | α = 90 |
| b = 106.775 | β = 101.87 |
| c = 47.903 | 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 | RAYONIX MX300-HS | 2014-06-25 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 22-ID | 1.0 | APS | 22-ID |
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 | 1.18 | 50 | 98.3 | 0.054 | 16.54 | 3.5 | 141750 | ||||||||||||
| 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 | 1.18 | 1.2 | 85.9 | 0.289 | 3.15 | ||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | 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 | MOLECULAR REPLACEMENT | THROUGHOUT | PDB entry 2P74 | 1.18 | 46.92 | 134602 | 7105 | 98.11 | 0.12633 | 0.12493 | 0.12 | 0.15287 | 0.15 | RANDOM | 10.439 | ||||
| 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] | |
| 0.68 | -0.09 | -0.25 | -0.38 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_sphericity_free | 41.758 |
| r_dihedral_angle_2_deg | 39.652 |
| r_dihedral_angle_4_deg | 16.267 |
| r_rigid_bond_restr | 16.024 |
| r_dihedral_angle_3_deg | 13.439 |
| r_sphericity_bonded | 10.609 |
| r_dihedral_angle_1_deg | 6.672 |
| r_angle_other_deg | 2.208 |
| r_angle_refined_deg | 1.383 |
| r_chiral_restr | 0.087 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 3891 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 601 |
| Heterogen Atoms | 146 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| HKL-2000 | data scaling |
| SCALEPACK | data scaling |
| DENZO | data reduction |
| PHASER | phasing |
