2DXM
Neutron Structure Analysis of Deoxy Human Hemoglobin
NEUTRON DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | MICRODIALYSIS | D2O, MICRODIALYSIS |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 63.79 | α = 90 |
b = 84.45 | β = 99.33 |
c = 54.35 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
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 | neutron | 298 | IMAGE PLATE | MACSCIENCE | 2004-08-20 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | NUCLEAR REACTOR | JRR-3M BEAMLINE 1G-B | 2.9 | JRR-3M | 1G-B |
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 | 2 | 62.5 | 70.5 | 0.099 | 56073 | 21841 | 1 | 1 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Starting model | 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-Work | R-Free | Mean Isotropic B | |||||
NEUTRON DIFFRACTION | MOLECULAR REPLACEMENT | Deoxy Human HB X-ray model(unpublished) | 2.1 | 8 | 1 | 1 | 21841 | 21841 | 0.1966 | 0.1966 | 0.2602 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4384 |
Nucleic Acid Atoms | |
Solvent Atoms | 201 |
Heterogen Atoms | 172 |
Software
Software | |
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Software Name | Purpose |
CNS | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
CNS | phasing |