3QFD

Human Class I MHC HLA-A2 in complex with Mart-1(27-35) nonameric peptide


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.5277PEG3350 24%, MES 0.025M, NaCl 0.1M, pH 6.5, vapor diffusion, sitting drop, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.3146.73

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.254α = 90
b = 84.118β = 90.05
c = 83.964γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDCUSTOM-MADE2006-08-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 19-BM0.97934APS19-BM

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.682098.60.07716.23.792084907951117
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.681.7496.90.4673.68849

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1.68209209390758454398.550.17180.17180.16970.2112RANDOM, 5%24.606
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]
-0.350.250.77-0.42
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.621
r_dihedral_angle_4_deg18.715
r_dihedral_angle_3_deg13.952
r_dihedral_angle_1_deg6.197
r_scangle_it2.885
r_mcangle_it2.158
r_scbond_it1.88
r_angle_refined_deg1.641
r_mcbond_it1.317
r_chiral_restr0.131
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.621
r_dihedral_angle_4_deg18.715
r_dihedral_angle_3_deg13.952
r_dihedral_angle_1_deg6.197
r_scangle_it2.885
r_mcangle_it2.158
r_scbond_it1.88
r_angle_refined_deg1.641
r_mcbond_it1.317
r_chiral_restr0.131
r_bond_refined_d0.015
r_gen_planes_refined0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6282
Nucleic Acid Atoms
Solvent Atoms815
Heterogen Atoms38

Software

Software
Software NamePurpose
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
SBC-Collectdata collection
HKL-2000data reduction
HKL-2000data scaling