Crystal structure of the editing domain of threonyl-tRNA synthetase from Pyrococcus abyssi in complex with threonyl-3'-aminoadenosine
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 1Y2Q | PDB ENTRY 1Y2Q | 
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 298 | PEG 3350, Bis-Tris, NaCl, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 1.7622 | 30.3597 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 38.295 | α = 90 | 
| b = 65.914 | β = 90 | 
| c = 93.698 | 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 | MAR scanner 345 mm plate | Osmic mirrors | 2009-04-22 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | ROTATING ANODE | RIGAKU RUH3R | 1.5418 | ||
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 | 1.86 | 25 | 98.5 | 0.064 | 27.2 | 4.9 | 20386 | 20386 | 2 | 2 | 23.1 | ||||||||
| 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) | |||||||||||
| 1.86 | 1.93 | 88.4 | 0.291 | 3.9 | 4.3 | 1785 | |||||||||||||
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1Y2Q | 1.86 | 24.14 | 20336 | 1034 | 99 | 0.198 | 0.198 | 0.19 | 0.229 | 0.21 | RANDOM | 28.4 | ||||
| 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] | |
| 5.97 | 0.76 | -6.73 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| c_dihedral_angle_d | 23.5 | 
| c_scangle_it | 3.23 | 
| c_scbond_it | 2.16 | 
| c_mcangle_it | 1.75 | 
| c_angle_deg | 1.4 | 
| c_mcbond_it | 1.21 | 
| c_improper_angle_d | 0.75 | 
| c_bond_d | 0.005 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 2271 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 198 | 
| Heterogen Atoms | 52 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| MAR345dtb | data collection | 
| MOLREP | phasing | 
| CNS | refinement | 
| DENZO | data reduction | 
| SCALEPACK | data scaling | 














