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Islet Amyloid Polypeptide (IAPP or Amylin) Residues 1 to 22 fused to Maltose Binding Protein
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1MPD PDB entry 1MPD
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 4.6 298 2.0 M Ammonium Sulfate, 0.1M Sodium Acetate pH 4.6, vapor diffusion, hanging drop, temperature 298K
Crystal Properties Matthews coefficient Solvent content 3 58.99
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 84.495 α = 90 b = 84.495 β = 90 c = 144.292 γ = 90
Symmetry Space Group P 41 21 2
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 QUANTUM 315 2008-02-25 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 24-ID-C 0.98085 APS 24-ID-C
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 1.75 90 99.8 0.099 16.958 12.3 53547 -3 36.5
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 1.75 1.89 100 0.431 12 10547
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 1MPD 1.75 55.22 53487 2720 99.62 0.171 0.17 0.1753 0.194 0.1976 RANDOM 23.421
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] 0.71 0.71 -1.42
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.882 r_dihedral_angle_3_deg 11.292 r_dihedral_angle_4_deg 10.965 r_dihedral_angle_1_deg 5.123 r_scangle_it 3.487 r_mcangle_it 2.602 r_scbond_it 2.217 r_mcbond_it 1.666 r_angle_refined_deg 1.193 r_angle_other_deg 0.863
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.882 r_dihedral_angle_3_deg 11.292 r_dihedral_angle_4_deg 10.965 r_dihedral_angle_1_deg 5.123 r_scangle_it 3.487 r_mcangle_it 2.602 r_scbond_it 2.217 r_mcbond_it 1.666 r_angle_refined_deg 1.193 r_angle_other_deg 0.863 r_mcbond_other 0.518 r_chiral_restr 0.074 r_bond_refined_d 0.009 r_gen_planes_refined 0.005 r_bond_other_d 0.001 r_gen_planes_other 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3024 Nucleic Acid Atoms Solvent Atoms 366 Heterogen Atoms 146
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling PHASER phasing REFMAC refinement PDB_EXTRACT data extraction BOS data collection