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Insulin fibrillation is the Janus face of induced fit. A chiral clamp stabilizes the native state at the expense of activity
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1XDA pdb entry 1XDA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8.3 298 0.05 M sodium citrate, 1% phenol, 0.04% zinc acetate, pH 8.3, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 1.96 37.4
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 77.9 α = 90 b = 77.9 β = 90 c = 78.3 γ = 120
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 MIRRORS 2005-01-14 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE BRUKER AXS MICROSTAR 1.5418
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 2.3 51.11 96.92 0.063 7.37 4.41 10337 10019 31.2
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 2.3 2.44 76.7 0.265 7.7 4.8 897
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (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 1XDA 2.3 51.11 7872 7098 733 90.2 0.214 0.2139 0.299 0.2991 Random 47.3
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] 4.14 4.14 -8.28
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 19.7 c_angle_deg 1.2 c_improper_angle_d 0.7 c_angle_d 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1620 Nucleic Acid Atoms Solvent Atoms 90 Heterogen Atoms 36
Software Software Software Name Purpose PROTEUM PLUS data collection CNS refinement PROTEUM PLUS data reduction PROTEUM PLUS data scaling CNS phasing