Crystal structure of the transpeptidase domain of a Y422A mutant of PBP2 from Neisseria gonorrhoeae strain H041 acylated by ceftriaxone
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 6VBC | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 291 | 0.1 M CHES buffer, pH 9.1 to 10.1, and 32-42% PEG 600. | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.3 | 45.5 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 49.771 | α = 90 |
| b = 59.45 | β = 90 |
| c = 112.933 | 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 | 100 | CCD | RAYONIX MX-300 | 2023-08-02 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 22-BM | 1.00 | APS | 22-BM |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | 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 | 2.4 | 50 | 97.6 | 0.13 | 0.052 | 0.985 | 8.5 | 6.9 | 13460 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
| 1 | 2.4 | 2.44 | 90.3 | 0.341 | 0.139 | 0.902 | 2 | 5.7 | |||||||||||
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | FOURIER SYNTHESIS | THROUGHOUT | 2.4 | 40.98 | 12720 | 689 | 97.18 | 0.199 | 0.19 | 0.1992 | 0.243 | 0.2456 | RANDOM | 35.2 | |||||
| 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] | |
| -2.97 | -1.84 | 4.81 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_3_deg | 15.466 |
| r_long_range_B_refined | 7.681 |
| r_long_range_B_other | 7.68 |
| r_dihedral_angle_1_deg | 7.073 |
| r_scangle_other | 6.119 |
| r_dihedral_angle_2_deg | 5.603 |
| r_mcangle_it | 4.198 |
| r_mcangle_other | 4.197 |
| r_scbond_it | 3.786 |
| r_scbond_other | 3.784 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2446 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 12 |
| Heterogen Atoms | 42 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |
| REFMAC | phasing |














