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Crystal structure of MHC CLass I HLA-A2.1 bound to residual fragments of a photocleavable peptide that is cleaved upon UV-light treatment
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1EEY PDB ENTRY 1EEY
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6.5 100 MM MES PH 5.5, 20% PEG 1500. CRYSTALS WERE FROZEN IN 100 MM MES, 30% PEG 1500, 10% GLYCEROL
Crystal Properties Matthews coefficient Solvent content 2.4 49
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 62.509 α = 90 b = 86.523 β = 90.34 c = 80.003 γ = 90
Symmetry 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 CCD MIRRORS 2007-09-06 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID23-1 ESRF ID23-1
Data Collection Overall 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 2.34 80.06 92.4 0.06 9.02 1.88 33198 -3.7 43.7
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 2.34 2.47 92.7 0.31 2.47 1.82
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB ENTRY 1EEY 2.34 19.806 1.37 33140 2013 92.06 0.2004 0.1957 0.1918 0.2739 0.2624 50.18
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] -1.6263 1.1234 5.0402 -3.4139
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 19.658 f_angle_d 1.317 f_chiral_restr 0.129 f_bond_d 0.008 f_plane_restr 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6243 Nucleic Acid Atoms Solvent Atoms 235 Heterogen Atoms 84
Software Software Software Name Purpose PHENIX refinement MOSFLM data reduction SCALA data scaling AMoRE phasing