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Structural and biophysical characterization of a covalent insulin dimer formed during storage of neutral formulation of human insulin
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.5 291 0.2 M Ammonium sulfate, 0.1 M Hepes, 25% w/v PEG3350
Crystal Properties Matthews coefficient Solvent content 3.45 64.35
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 78.392 α = 90 b = 78.392 β = 90 c = 78.392 γ = 90
Symmetry Space Group I 21 3
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 MAR CCD 165 mm 2014-09-10 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007 HF 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) 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 1.77 50 99.8 0.15 0.153 0.029 9.4 27 8003 21.81
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.77 1.8 95.8 0.489 0.519 0.166 0.821 3.3 9 385
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 FREE R-VALUE 1.77 39.196 1.34 7995 810 99.69 0.162 0.1573 0.1616 0.2059 0.2065 29.5848
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 f_dihedral_angle_d 14.523 f_angle_d 1.084 f_chiral_restr 0.047 f_bond_d 0.01 f_plane_restr 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 405 Nucleic Acid Atoms Solvent Atoms 66 Heterogen Atoms 9
Software Software Software Name Purpose HKL-2000 data reduction SCALEPACK data scaling PHASER phasing PHENIX refinement PDB_EXTRACT data extraction Coot model building