3BH8
Crystal Structure of RQA_M Phosphopeptide Bound to HUMAN Class I MHC HLA-A2
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 298 | 17% PEG 8000, 0.1M HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.55 | 51.84 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 112.6 | α = 90 |
b = 55.1 | β = 103.5 |
c = 75.9 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 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 | CCD | SATURN | 2007-04-03 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU | 1.5417 |
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 | 1.6 | 20 | 90 | 0.039 | 26.79 | 7 | 53891 | -3 | 25.593 |
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) | |||||||||||
1.6 | 1.7 | 67.6 | 0.703 | 2.3 |
Refinement
Statistics | |||||||||||||||||||
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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 | 1.65 | 19.72 | 50642 | 2560 | 92.89 | 0.202 | 0.2 | 0.231 | RANDOM | 18.944 |
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] | |
0.05 | -0.08 | -0.03 | -0.06 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 32.104 |
r_dihedral_angle_4_deg | 20.23 |
r_dihedral_angle_3_deg | 12.627 |
r_dihedral_angle_1_deg | 5.777 |
r_scangle_it | 3.412 |
r_scbond_it | 2.233 |
r_mcangle_it | 1.405 |
r_angle_refined_deg | 1.34 |
r_mcbond_it | 0.918 |
r_nbtor_refined | 0.293 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3166 |
Nucleic Acid Atoms | |
Solvent Atoms | 368 |
Heterogen Atoms | 8 |
Software
Software | |
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Software Name | Purpose |
XSCALE | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
XDS | data reduction |
MOLREP | phasing |