4Z77
Weak TCR binding to an unstable insulin epitope drives type 1 diabetes
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 291 | 20% PEG 6000, 0.2 M calcium chloride, 0.1 M Tris propane pH 8.0 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.15 | 42.86 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 66.15 | α = 90 |
b = 84.53 | β = 106.86 |
c = 72.86 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 315r | 2012-02-09 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I04-1 | .9173 | Diamond | I04-1 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 1.85 | 37.099 | 97.8 | 0.214 | 0.298 | 0.151 | 11.7 | 3.7 | 64020 | 64020 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 1.85 | 1.9 | 98.8 | 2.075 | 2.075 | 1.476 | 0.2 | 3.9 | 4737 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | 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 | 1.85 | 37.099 | 57609 | 3073 | 92.61 | 0.2085 | 0.206 | 0.253 | RANDOM | 28.972 |
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] | |
-0.08 | 0.26 | 0.13 | -0.18 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 32.35 |
r_dihedral_angle_4_deg | 21.641 |
r_dihedral_angle_3_deg | 18.703 |
r_dihedral_angle_1_deg | 6.995 |
r_angle_refined_deg | 1.856 |
r_angle_other_deg | 1.306 |
r_mcangle_it | 1.193 |
r_mcbond_it | 0.705 |
r_mcbond_other | 0.705 |
r_chiral_restr | 0.121 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6394 |
Nucleic Acid Atoms | |
Solvent Atoms | 411 |
Heterogen Atoms | 150 |
Software
Software | |
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Software Name | Purpose |
SCALA | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
xia2 | data reduction |