3O3E
Human Class I MHC HLA-A2 in complex with the Peptidomimetic ELA-2.1
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2GT9 | PDB entry 2GT9 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 277 | PEG3350 24%, MES 0.025M, NaF 0.1M, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.31 | 46.66 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 58.176 | α = 90 |
b = 84.351 | β = 90.06 |
c = 83.99 | 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 | IMAGE PLATE | MAR scanner 300 mm plate | 2008-10-14 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 14-BM-C | 0.98 | APS | 14-BM-C |
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 | 1.85 | 20 | 96.5 | 0.108 | 13.4 | 3.6 | 69372 | 66944 | 1 | 1 | 19.3 |
Highest Resolution Shell | |||||||||||||||||||
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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) | |||||||||||
1.85 | 1.88 | 72.9 | 0.634 | 2.7 | 2540 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB entry 2GT9 | 1.85 | 20 | 69372 | 66916 | 3377 | 96.46 | 0.1847 | 0.1847 | 0.1823 | 0.2295 | RANDOM, 5 % | 27.48 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
-0.94 | -0.13 | 2.18 | -1.24 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 33.497 |
r_dihedral_angle_4_deg | 18.806 |
r_dihedral_angle_3_deg | 16.363 |
r_dihedral_angle_1_deg | 6.988 |
r_scangle_it | 4.272 |
r_scbond_it | 2.687 |
r_angle_refined_deg | 1.719 |
r_mcangle_it | 1.62 |
r_mcbond_it | 0.907 |
r_chiral_restr | 0.128 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6304 |
Nucleic Acid Atoms | |
Solvent Atoms | 578 |
Heterogen Atoms | 24 |
Software
Software | |
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Software Name | Purpose |
SCALEPACK | data scaling |
MOLREP | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
HKL-2000 | data collection |
HKL-2000 | data reduction |
HKL-2000 | data scaling |