4MNQ
TCR-peptide specificity overrides affinity enhancing TCR-MHC interactions
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 291 | TRIS 0.02M, 20% PEG 4000, 0.01M NaCl, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 291K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.72 | 54.82 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 94.22 | α = 90 |
b = 48.49 | β = 107.86 |
c = 118.07 | 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 | DECTRIS PILATUS 2M | 2012-06-30 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I03 | 0.9763 | Diamond | I03 |
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 | 2.74 | 42.15 | 82 | 0.121 | 8.3 | 1.6 | 26577 |
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 | 2.74 | 2.81 | 85.6 | 0.909 | 1.8 | 1.6 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 2.742 | 42.15 | 26562 | 25218 | 1344 | 97.65 | 0.21767 | 0.214 | 0.28438 | RANDOM | 64.941 |
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] | |
-0.1 | 0.78 | 0.7 | -0.7 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 38.219 |
r_dihedral_angle_3_deg | 20.491 |
r_dihedral_angle_4_deg | 18.238 |
r_dihedral_angle_1_deg | 8.445 |
r_mcangle_it | 2.427 |
r_scbond_it | 1.645 |
r_angle_refined_deg | 1.571 |
r_mcbond_it | 1.466 |
r_mcbond_other | 1.466 |
r_angle_other_deg | 0.828 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6649 |
Nucleic Acid Atoms | |
Solvent Atoms | 21 |
Heterogen Atoms | 14 |
Software
Software | |
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Software Name | Purpose |
Aimless | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
XSCALE | data scaling |