Human transthyretin (TTR) complexed with (R)-3-(9H-fluoren-9-ylideneaminooxy)-2-methyl-N-(methylsulfonyl) propionamide in a dual binding mode
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4TQI | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 5.7 | 293 | Protein: 5 mg/ml in 0.05 M NaCl, 0.05 M sodium acetate, pH 5.5. Precipitant: 60% (30% PEG-4K, 0.2 M imidazole malate, pH 6.0) and 40% (MPEG-5K, 0.1 M sodium acetate, pH 5.5). Cryoprotectant: 40% (25 % diethylene glycol, 12.5 % MPD, 37.5 % 2,3-butanediol, 12.5 % 1,4-dioxane), 12.5% MPEG 5K, 25% MPEG 550, 0.1 M (sodium propionate, sodium cacodylate, Bis-Tris-propane: 50% component A pH 4; 50% B pH 9.5) with 1 milli-M ligand. |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.14 | 42.46 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 43.121 | α = 90 |
| b = 86.081 | β = 90 |
| c = 63.473 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 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 | PIXEL | DECTRIS PILATUS 6M-F | 2014-01-30 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE ID23-1 | 0.87006 | ESRF | ID23-1 |
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 | 1.58 | 51.1 | 99.9 | 0.125 | 0.118 | 14.12 | 9.19 | 33125 | 33100 | -3 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
| 1 | 1.58 | 1.64 | 99.9 | 1.87 | 9.5 | ||||||||||||||
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 | 4TQI | 1.58 | 51.09 | 31425 | 1674 | 99.92 | 0.14441 | 0.14148 | 0.1385 | 0.19761 | 0.1961 | RANDOM | 19.98 | ||||
| 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] | |
| 0.19 | -0.21 | 0.02 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.429 |
| r_dihedral_angle_4_deg | 18.643 |
| r_dihedral_angle_3_deg | 14.398 |
| r_scangle_it | 7.776 |
| r_dihedral_angle_1_deg | 6.799 |
| r_scbond_it | 5.449 |
| r_mcangle_it | 4.253 |
| r_rigid_bond_restr | 2.867 |
| r_mcbond_it | 2.728 |
| r_angle_refined_deg | 2.15 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1792 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 260 |
| Heterogen Atoms | 62 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| Coot | model building |
| XDS | data scaling |
| XSCALE | data scaling |
| ADSC | data collection |














