2X4T
Crystal structure of MHC CLass I HLA-A2.1 bound to a Peiodate- cleavable peptide
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 6.5 | 0.1 M MES PH 6.5, 22% PEG1500 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.4 | 48.77 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 62.391 | α = 90 |
b = 85.516 | β = 90.33 |
c = 80.394 | 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 | x-ray | 100 | PIXEL | PSI PILATUS 6M | MIRRORS | 2007-12-08 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SLS BEAMLINE X06SA | SLS | X06SA |
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 | 2.2 | 37.5 | 98.1 | 0.06 | 7.9 | 3.1 | 37003 | -3.7 | 53 |
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) | |||||||||||
1 | 2.3 | 2.42 | 97.9 | 0.51 | 1.4 | 3.2 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | PDB ENTRY 1EEY | 2.3 | 19.83 | 1.38 | 36785 | 1855 | 97.89 | 0.1858 | 0.1839 | 0.2357 | 66.92 |
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] | |
-2.906 | -0.1416 | 5.5356 | -2.6296 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 20.557 |
f_angle_d | 1.334 |
f_chiral_restr | 0.125 |
f_bond_d | 0.008 |
f_plane_restr | 0.004 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6300 |
Nucleic Acid Atoms | |
Solvent Atoms | 229 |
Heterogen Atoms | 42 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
MOSFLM | data reduction |
SCALA | data scaling |