Neutron structure of human transthyretin (TTR) S52P mutant in complex with tafamidis at room temperature to 2A resolution (quasi-Laue)
X-RAY DIFFRACTION - NEUTRON DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) |
|---|
| Type | Source | Accession Code | Details |
|---|
|
experimental model | PDB | 5CLX | |
Crystallization
| Crystalization Experiments |
|---|
| ID | Method | pH | Temperature | Details |
|---|
| 1 | VAPOR DIFFUSION, SITTING DROP | | 293 | 2.3M sodium malonate pD 5.9 |
| Crystal Properties |
|---|
| Matthews coefficient | Solvent content |
|---|
| 2.19 | 43.77 |
Crystal Data
| Unit Cell |
|---|
| Length ( Å ) | Angle ( ˚ ) |
|---|
| a = 43.901 | α = 90 |
| b = 85.703 | β = 90 |
| c = 65.54 | 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 | neutron | 293 | IMAGE PLATE | LADI III | | 2017-03-01 | L | LAUE |
| 2 | 1 | x-ray | 293 | PIXEL | DECTRIS PILATUS 6M-F | | 2017-03-01 | M | SINGLE WAVELENGTH |
| Radiation Source |
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
|---|
| 1 | NUCLEAR REACTOR | ILL BEAMLINE LADI III | 2.7-3.6 | ILL | LADI III |
| 2 | SYNCHROTRON | ESRF BEAMLINE ID30B | 0.9763 | ESRF | ID30B |
Data Collection
| Overall |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | 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 | 43.9 | 71.9 | 0.121 | | | 0.07 | | | 6 | 2.6 | | 17225 | | | 23.28 |
| 2 | 2 | 35.85 | 98.7 | 0.041 | | | 0.021 | | | 31 | 4.6 | | 12103 | | | 19.34 |
| Highest Resolution Shell |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) |
|---|
| 1 | 2 | 2.11 | | 0.208 | | | 0.151 | | | 4 | 2.2 | |
| 2 | 2 | 2.11 | | 0.046 | | | 0.023 | | | 23.3 | 4.7 | |
Refinement
| Statistics |
|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | 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 | 2 | 42.852 | | 2.06 | | 17192 | 1718 | 99.24 | | 0.1612 | 0.1574 | 0.16 | 0.1947 | 0.19 | | |
| NEUTRON DIFFRACTION | MOLECULAR REPLACEMENT | 2 | 35.866 | | | | 12097 | 1211 | 69.83 | | 0.2363 | 0.2313 | | 0.2801 | | | |
| 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 | 14.635 |
| f_dihedral_angle_d | 14.635 |
| f_angle_d | 1.975 |
| f_angle_d | 1.975 |
| f_chiral_restr | 0.088 |
| f_chiral_restr | 0.088 |
| f_bond_d | 0.017 |
| f_bond_d | 0.017 |
| f_plane_restr | 0.01 |
| f_plane_restr | 0.01 |
| Non-Hydrogen Atoms Used in Refinement |
|---|
| Non-Hydrogen Atoms | Number |
|---|
| Protein Atoms | 1794 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 26 |
| Heterogen Atoms | 40 |
Software
| Software |
|---|
| Software Name | Purpose |
|---|
| PHENIX | refinement |
| LAUEGEN | data reduction |
| XDS | data reduction |
| LSCALE | data scaling |
| SCALA | data scaling |
| REFMAC | phasing |
| Coot | model building |