1XZV
T-to-THigh Quaternary Transitions in Human Hemoglobin: alphaP95A deoxy low-salt
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1XXT | PDB ENTRY 1XXT |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 7 | 298 | 10% PEG 6000, 10 mM potassium phosphate, 100 mM potassium chloride, 3 mM sodium dithionite, 10 mg/ml Hb, pH 7.0, batch, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.56 | 51.95 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 97.2 | α = 90 |
b = 99.1 | β = 90 |
c = 66 | 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 | 298 | AREA DETECTOR | SDMS | GRAPHITE | 1999-03-07 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU200 |
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 | 2.11 | 50 | 97 | 0.114 | 7.4 | 6.5 | 36004 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.11 | 2.28 | 86.7 | 0.227 | 1.9 | 3 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1XXT | 2.11 | 10 | 2 | 35207 | 33086 | 2995 | 0.17 | 0.246 | MATCHED TO PDB ENTRY 1XXT |
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 |
p_transverse_tor | 32.1 |
p_staggered_tor | 20.6 |
p_scangle_it | 7.751 |
p_scbond_it | 6.17 |
p_mcangle_it | 3.474 |
p_mcbond_it | 2.555 |
p_planar_tor | 2.3 |
p_xyhbond_nbd | 0.18 |
p_multtor_nbd | 0.174 |
p_singtor_nbd | 0.166 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4376 |
Nucleic Acid Atoms | |
Solvent Atoms | 194 |
Heterogen Atoms | 172 |
Software
Software | |
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Software Name | Purpose |
SDMS | data collection |
SDMS | data reduction |
X-PLOR | model building |
PROLSQ | refinement |
SDMS | data scaling |
X-PLOR | phasing |