Crystal structure of S-adenosylmethionine tRNA ribosyltransferase (TM0574) from Thermotoga maritima at 2.00 A resolution
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION,SITTING DROP,NANODROP | 295 | 0.10M NP_Citrate 1, 4.0% NP_Peg 6000, % NP_PEG 4000 , VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 295K | |
| 2 | VAPOR DIFFUSION,SITTING DROP,NANODROP | 293 | 0.10M NP_Citrate 2, 12.0% NP_PEG 4000 , VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.98 | 58.78 |
| 3.66 | 66.12 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 119.033 | α = 90 |
| b = 122.843 | β = 90 |
| c = 131.207 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | I 2 2 2 |
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 | 2003-10-18 | M | SINGLE WAVELENGTH | ||||||
| 2 | 1 | x-ray | 100 | CCD | APS | 2003-08-06 | M | MAD | ||||||
| 1,2 | 1 | |||||||||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ALS BEAMLINE 8.2.2 | ALS | 8.2.2 | |
| 2 | SYNCHROTRON | APS BEAMLINE 19-ID | 0.97934,1.00800,0.97921 | APS | 19-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 | ||||||||
| 1,2 | 2 | 29.39 | 100 | 0.073 | 14.8 | 7.3 | 65036 | 44.87 | |||||||||||
| 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) | |||||||||||
| 1,2 | 2 | 2.11 | 100 | 0.678 | 2.7 | 6.4 | 9393 | ||||||||||||
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 | MAD | THROUGHOUT | 2 | 29.39 | 61756 | 3280 | 99.94 | 0.18107 | 0.17951 | 0.19 | 0.21041 | 0.22 | RANDOM | 32.15 | |||||
| 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] | |
| -2.08 | 1.47 | 0.61 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 31.747 |
| r_dihedral_angle_4_deg | 15.993 |
| r_dihedral_angle_3_deg | 14.577 |
| r_scangle_it | 7.898 |
| r_dihedral_angle_1_deg | 6.183 |
| r_scbond_it | 5.39 |
| r_mcangle_it | 3.29 |
| r_mcbond_it | 2.294 |
| r_angle_refined_deg | 1.529 |
| r_angle_other_deg | 0.805 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 4501 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 162 |
| Heterogen Atoms | 18 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| MOSFLM | data reduction |
| SCALA | data scaling |
| SOLVE | phasing |
| RESOLVE | model building |
| REFMAC | refinement |
| CCP4 | data scaling |
| RESOLVE | phasing |














