Crystal structure of Aquifex aeolicus TilS in a complex with ATP, Magnesium ion, and L-lysine
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2E21 | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 5.4 | 293 | 0.1M Na citrate, 0.2M Ammonium Acetate, 20% PEG4 000 , pH 5.4, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.79 | 55.85 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 97.42 | α = 90 |
| b = 81.57 | β = 105.98 |
| c = 109.11 | 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 | 90 | CCD | ADSC QUANTUM 315 | 2006-11-16 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SPRING-8 BEAMLINE BL41XU | 1 | SPring-8 | BL41XU |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 2.5 | 50 | 91.8 | 0.089 | 0.084 | 12.3 | 2.6 | 57042 | 52465 | 30.8 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1 | 2.5 | 2.59 | 78 | 0.221 | 0.284 | 2.3 | 1.7 | ||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | 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 | 2E21 | 2.5 | 44.03 | 57034 | 52457 | 2650 | 91.8 | 0.229 | 0.229 | 0.22 | 0.274 | 0.27 | RANDOM | 54.3 | |||
| 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] | |
| -12.2 | 6.49 | 6.24 | 5.95 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| c_dihedral_angle_d | 22 |
| c_scangle_it | 4.16 |
| c_scbond_it | 2.96 |
| c_mcangle_it | 2.45 |
| c_improper_angle_d | 2.09 |
| c_angle_deg | 1.7 |
| c_mcbond_it | 1.44 |
| c_bond_d | 0.014 |
| c_bond_d_na | |
| c_bond_d_prot | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 10442 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 65 |
| Heterogen Atoms | 135 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| CNS | refinement |
| HKL-2000 | data collection |
| HKL-2000 | data reduction |
| SCALEPACK | data scaling |
| MOLREP | phasing |
