Crystal structure of a marine metagenome TRAP solute binding protein specific for aromatic acid ligands (Sorcerer II Global Ocean Sampling Expedition, unidentified microbe, locus tag GOS_1523157) in complex with co-crystallized 3-hydroxybenzoate
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 298 | Protein (10 mM HEPES pH 7.5, 5 mM DTT, 75 mg/ml); Reservoir (MCSG2 A2)(0.1 M HEPES pH 7.5, 20 %(w/v) PEG 8000); Cryoprotection (20% Diethylene Glycol, 80% Reservoir) |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 1.93 | 36.36 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 46.091 | α = 90 |
| b = 82.588 | β = 98.39 |
| c = 75.961 | 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 | CCD | RAYONIX MX300HE | 2015-11-15 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 31-ID | 0.9793 | APS | 31-ID |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 1.3 | 82.59 | 96.8 | 0.082 | 0.998 | 11 | 3.5 | 133576 | 8.27 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 1.3 | 1.32 | 92.5 | 0.727 | 0.878 | 0.484 | 0.583 | 3 | 6307 | ||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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) | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | Intial model obtained from a TrimethylLeadAceate Derivative dataset | 1.3 | 37.575 | 1.34 | 133540 | 6623 | 96.79 | 0.149 | 0.1477 | 0.15 | 0.1726 | 0.17 | 13.4885 | ||||
| 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 |
| f_dihedral_angle_d | 18.09 |
| f_angle_d | 1.007 |
| f_chiral_restr | 0.074 |
| f_plane_restr | 0.009 |
| f_bond_d | 0.008 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 4834 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 1125 |
| Heterogen Atoms | 64 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| Aimless | data scaling |
| PHENIX | refinement |
| PDB_EXTRACT | data extraction |
| MOLREP | phasing |
| MOSFLM | data reduction |














