5EKT
Crystal structure of mutant-K146A of peptidyl-tRNA hydrolase from Vibrio cholerae at 1.63A resolution.
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 296 | 100mM Sodium citrate (pH 8), 200mM Ammonium acetate, 20% PEG 4000 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.39 | 48.5 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 44.934 | α = 90 |
| b = 74.295 | β = 90 |
| c = 123.571 | 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 | IMAGE PLATE | RIGAKU RAXIS IV++ | 2015-08-24 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU FR-E+ SUPERBRIGHT | 1.54 | ||
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 | 1.63 | 50 | 88.4 | 32.1 | 5.6 | 46655 | |||||||||||||
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 | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 4ZXP | 1.63 | 50 | 44043 | 2345 | 88.01 | 0.18914 | 0.18711 | 0.2281 | RANDOM | 29.066 | ||||||
| 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] | |
| -0.31 | 1.23 | -0.92 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 41.616 |
| r_dihedral_angle_4_deg | 16.076 |
| r_dihedral_angle_3_deg | 13.133 |
| r_long_range_B_refined | 7.645 |
| r_long_range_B_other | 7.637 |
| r_dihedral_angle_1_deg | 6.734 |
| r_scangle_other | 4.998 |
| r_scbond_it | 3.581 |
| r_scbond_other | 3.571 |
| r_mcangle_it | 2.951 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 3034 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 383 |
| Heterogen Atoms | 13 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |
| HKL-2000 | phasing |
