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CRYSTAL STRUCTURE OF A HUMAN IGM RHEUMATOID FACTOR FAB IN COMPLEX WITH ITS AUTOANTIGEN IGG FC
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1FC1 PDB ENTRY 1FC1, 2IG2 experimental model PDB 2IG2 PDB ENTRY 1FC1, 2IG2
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7 CRYSTALS WERE GROWN BY HANGING DROP VAPOR DIFFUSION. THE HANGING DROPS CONSISTED OF 2UL OF PROTEIN SOLUTION CONTAINING EACH PROTEIN AT 1MG/ML IN 0.1 % SODIUM AZIDE, 20MM TRIS-HCL AT PH 7.0, MIXED WITH AN EQUAL VOLUME OF THE RESERVOIR SOLUTION TO BE SCREENED. CRYSTALS WERE OBTAINED WITH RESERVOIR SOLUTIONS CONTAINING 17.5 - 22.5 % (W/V) POLYETHYLENE GLYCOL (MEAN MW 8000) IN 0.1 % SODIUM AZIDE, 100MM TRIS-HCL, PH 7.0, AT TEMPERATURES BETWEEN 17.5 AND 21.5 (CELSIUS)., vapor diffusion - hanging drop
Crystal Properties Matthews coefficient Solvent content 2.9 58
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 160.35 α = 90 b = 81.95 β = 98.27 c = 64.24 γ = 90
Symmetry Space Group C 1 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 278 IMAGE PLATE RIGAKU RAXIS II COLLIMATOR 1994-06-19 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200
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 3.15 15 98.3 0.113 5.3 3.1 14109 3 25.4
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) 3.15 3.31 98.8 0.265 2.8 3.1
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) 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) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1FC1, 2IG2 3.15 8 11603 756 86 0.225 0.225 0.2197 0.289 0.2824 RANDOM 33.1
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]
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 26.47 x_angle_deg 1.18 x_improper_angle_d 1.06 x_bond_d 0.005 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 26.47 x_angle_deg 1.18 x_improper_angle_d 1.06 x_bond_d 0.005 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d_na x_improper_angle_d_prot x_mcbond_it x_mcangle_it x_scbond_it x_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4977 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms
Software Software Software Name Purpose DENZO data reduction CCP4 data reduction AMoRE phasing X-PLOR refinement CCP4 data scaling