Neutron structure of human transthyretin (TTR) at room temperature to 2.0A resolution (Laue)
NEUTRON DIFFRACTION - X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 6.4 | 293 | 2.15M SODIUM MALONATE, 23MG/ML PROTEIN, pH 6.4, VAPOR DIFFUSION, SITTING DROP, temperature 293K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.21 | 44.22 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 43.68 | α = 90 |
| b = 86.26 | β = 90 |
| c = 65.72 | 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 | 2010-05-12 | L | LAUE | ||||||
| 2 | 1 | x-ray | 293 | CCD | ADSC QUANTUM 315r | 2011-02-12 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | NUCLEAR REACTOR | OTHER | 3.18-4.22 | ||
| 2 | SYNCHROTRON | ESRF BEAMLINE ID23-1 | 0.9791 | ESRF | ID23-1 |
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 | 43.68 | 78.3 | 0.182 | 7.3 | 5.1 | 17216 | 13480 | 2 | 2 | |||||||||
| 2 | 1.85 | 43.13 | 99.4 | 0.093 | 7.4 | 3.5 | 21718 | 2 | 19.8 | ||||||||||
| 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 | 0.337 | 3.4 | 4 | 1524 | |||||||||||||
| 2 | 1.85 | 1.95 | 0.42 | 2.67 | 3.49 | ||||||||||||||
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 | ||
| NEUTRON DIFFRACTION | 2 | 36.378 | 1.46 | 13391 | 1341 | 76.93 | 0.2147 | 0.2086 | 0.2709 | ||||||||||
| X-RAY DIFFRACTION | 1.95 | 43.13 | 1.34 | 18655 | 1867 | 99.44 | 0.1577 | 0.1529 | 0.1597 | 0.2025 | 0.2048 | 25.17 | |||||||
| 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] | |
| -1.0713 | 0.4593 | 0.612 | ||||
| -0.3074 | -0.0845 | 0.392 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 17.929 |
| f_angle_d | 1.354 |
| f_chiral_restr | 0.082 |
| f_bond_d | 0.013 |
| f_plane_restr | 0.007 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1801 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 89 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| QLD | data collection |
| PHENIX | model building |
| PHENIX | refinement |
| LAUEGEN | data reduction |
| LSCALE | data scaling |
| SCALA | data scaling |
| PHENIX | phasing |














