Human Transthyretin (TTR) Complexed with Hydroxylated polychlorinated Biphenyl-4,4'-dihydroxy-3,3',5,5'-tetrachlorobiphenyl
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1BMZ |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 298 | Crystals of recombinant WT TTR were obtained from protein solutions at 5 mg/ml (in 100 mM KCl, 100 mM phosphate [pH 7.4], 1 M ammonium sulfate) equilibrated against 2 M ammonium sulfate in hanging drop experiments. The TTR ligand complexes were prepared from crystals soaked for 2 weeks with a 10-fold molar excess , pH 7.00, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.18 | 43.59 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 43.239 | α = 90 |
b = 85.841 | β = 90 |
c = 64.793 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 120 | IMAGE PLATE | MAC Science DIP-2030 | 1999-06-07 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU |
Data Collection
Overall | |||||||||||||||||||
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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 | 1.8 | 27.52 | 92.1 | 0.037 | 21209 | 21209 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1 | 1.8 | 1.86 | 92.4 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Free (Depositor) | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 1BMZ | 1.8 | 27.52 | 21209 | 21209 | 1097 | 92.07 | 0.18199 | 0.18199 | 0.17998 | 0.21972 | RANDOM | 24.923 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[2][2] | Anisotropic B[3][3] | ||||
0.75 | -0.29 | -0.46 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.303 |
r_dihedral_angle_4_deg | 17.212 |
r_dihedral_angle_3_deg | 14.674 |
r_dihedral_angle_1_deg | 5.365 |
r_scangle_it | 5.283 |
r_scbond_it | 3.516 |
r_mcangle_it | 2.124 |
r_angle_refined_deg | 1.497 |
r_mcbond_it | 1.466 |
r_nbtor_refined | 0.313 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1750 |
Nucleic Acid Atoms | |
Solvent Atoms | 120 |
Heterogen Atoms | 36 |
Software
Software | |
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Software Name | Purpose |
SCALEPACK | data scaling |
AMoRE | phasing |
REFMAC | refinement |
HKL-2000 | data reduction |