6AG8
Crystal structure of Maltose O-acetyltransferase from E. coli
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 8 | 293 | 20% Poly Ethylene glycol 3350, 0.1M Tris (pH 8.0), 0.2M NaCl |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.26 | 45.56 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 62.104 | α = 90 |
| b = 62.104 | β = 90 |
| c = 81.128 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 3 |
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 | ADSC QUANTUM 270 | 2018-05-02 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | PAL/PLS BEAMLINE 7A (6B, 6C1) | 0.97934 | PAL/PLS | 7A (6B, 6C1) |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | Rpim I (All) | 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 | 1.34 | 50 | 99.5 | 0.029 | 34.66 | 5.6 | 78711 | ||||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
| 1 | 1.34 | 1.36 | 0.187 | ||||||||||||||||
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 | 2IC7 | 1.34 | 26.91 | 74382 | 3885 | 99.41 | 0.17239 | 0.17145 | 0.1902 | RANDOM | 14.828 | ||||||
| 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] | |
| -0.24 | -0.12 | -0.24 | 0.77 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 32.452 |
| r_dihedral_angle_4_deg | 17.281 |
| r_dihedral_angle_3_deg | 12.842 |
| r_dihedral_angle_1_deg | 6.774 |
| r_long_range_B_refined | 4.88 |
| r_long_range_B_other | 4.839 |
| r_scangle_other | 3.991 |
| r_scbond_it | 2.622 |
| r_scbond_other | 2.622 |
| r_mcangle_other | 1.797 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2808 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 297 |
| Heterogen Atoms | 16 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| HKL-2000 | data scaling |
| MOLREP | phasing |
