Crystal Structure of AdoMet bound rRNA methyltransferase from Sinorhizobium meliloti
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 300 | 5mM Cobalt chloride , 5mM Magnesium chloride hexahydrate, 0.1M HEPES pH 7.5, 9% wt/vol polyethylene glycol 3,350 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.32 | 46.98 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 64.855 | α = 90 |
| b = 82.896 | β = 90 |
| c = 108.806 | 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 | 2015-08-20 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | BRUKER AXS MICROSTAR | 1.542 | ||
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | 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 | 2.9 | 65.94 | 100 | 0.86 | 28.51 | 6.7 | 13571 | ||||||||||||
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 | MOLECULAR REPLACEMENT | THROUGHOUT | 2.9 | 65.94 | 12403 | 634 | 96.23 | 0.19437 | 0.19087 | 0.195 | 0.26498 | 0.2614 | RANDOM | 56.424 | |||||
| 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] | |
| 0.54 | -0.89 | 0.34 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 37.897 |
| r_dihedral_angle_4_deg | 19.716 |
| r_dihedral_angle_3_deg | 18.907 |
| r_dihedral_angle_1_deg | 7.549 |
| r_long_range_B_refined | 5.616 |
| r_long_range_B_other | 5.615 |
| r_scangle_other | 3.491 |
| r_mcangle_it | 3.404 |
| r_mcangle_other | 3.404 |
| r_scbond_it | 2.086 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 3951 |
| Nucleic Acid Atoms | |
| Solvent Atoms | |
| Heterogen Atoms | 68 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| HKL-3000 | data processing |
| HKL-3000 | data scaling |
| REFMAC | refinement |














