4AY7
methyltransferase from Methanosarcina mazei
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 8.5 | 0.1 M TRIS PH 8.5, 0.2 M MGCL2, 30%(W/W) PEG 4000, 2% 1,1,1,3,3,3-HEXAFLUORO-2-PROPANOL | ||
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.03 | 39.31 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 44.209 | α = 90 |
| b = 167.419 | β = 117.36 |
| c = 45.849 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 1 21 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS 6M | M | SINGLE WAVELENGTH | |||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SLS BEAMLINE X10SA | SLS | X10SA | |
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 | 1.8 | 83.71 | 100 | 0.11 | 8.1 | 4.8 | 54605 | 2 | |||||||||||
| 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 | 1.8 | 1.9 | 100 | 0.79 | 2.2 | 4.8 | |||||||||||||
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 | PDB ENTRY 4AY8 | 1.8 | 83.71 | 51799 | 2759 | 99.99 | 0.16556 | 0.16304 | 0.21287 | RANDOM | 26.633 | ||||||
| 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] | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.226 |
| r_dihedral_angle_4_deg | 24.605 |
| r_dihedral_angle_3_deg | 14.425 |
| r_dihedral_angle_1_deg | 6.03 |
| r_angle_refined_deg | 1.965 |
| r_angle_other_deg | 1.078 |
| r_chiral_restr | 0.12 |
| r_bond_refined_d | 0.019 |
| r_gen_planes_refined | 0.01 |
| r_bond_other_d | 0.001 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 4994 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 408 |
| Heterogen Atoms | 4 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| XDS | data reduction |
| SCALA | data scaling |
| MOLREP | phasing |
