3BHB

Crystal Structure of KMD Phosphopeptide Bound to Human Class I MHC HLA-A2


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.529824% POLYACRYLIC ACID, 0.1M HEPES, 0.09M MgCl2, pH 7.5, VAPOR DIFFUSION, hanging drop, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.6453.45

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 57.1α = 90
b = 80.2β = 115.9
c = 57.3γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDSATURN2007-04-04MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.5417

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
12.22095.80.11616.5510.122776-322.438
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)
2.22.375.60.3334.8

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2.219.5222724110596.10.2260.256random15.166
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]
-1.602-0.1732.854-1.252
RMS Deviations
KeyRefinement Restraint Deviation
c_scangle_it2.97
c_scbond_it2.015
c_mcangle_it1.82
c_angle_deg1.57
c_mcbond_it1.193
c_bond_d0.013
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3143
Nucleic Acid Atoms
Solvent Atoms119
Heterogen Atoms4

Software

Software
Software NamePurpose
XSCALEdata processing
CNSrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
XSCALEdata scaling
MOLREPphasing