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Structure of an amyloid forming peptide SSTNVG from IAPP (alternate polymorph)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 298 reservoir contained 20% w/v PEG-3000, 0.1M HEPES, 0.2M NaCl, pH 7.5, vapor diffusion, hanging drop, temperature 298K
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 16.59 α = 90 b = 4.789 β = 90 c = 40.229 γ = 90
Symmetry Space Group P 21 21 21
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 2008-11-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 24-ID-E 0.9792 APS 24-ID-E
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 1.6 90 92.6 0.149 6.462 4.5 503 15.9
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) 1.6 1.72 85.7 0.499 2.8 78
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 1.61 20.11 486 48 92.93 0.226 0.223 0.2357 0.253 0.2735 RANDOM 9.598
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] 0.97 -1.31 0.34
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 41.332 r_dihedral_angle_3_deg 7.329 r_dihedral_angle_1_deg 4.121 r_mcangle_it 2.574 r_scangle_it 1.786 r_mcbond_it 1.74 r_scbond_it 1.272 r_angle_refined_deg 0.913 r_angle_other_deg 0.593 r_mcbond_other 0.407
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 41.332 r_dihedral_angle_3_deg 7.329 r_dihedral_angle_1_deg 4.121 r_mcangle_it 2.574 r_scangle_it 1.786 r_mcbond_it 1.74 r_scbond_it 1.272 r_angle_refined_deg 0.913 r_angle_other_deg 0.593 r_mcbond_other 0.407 r_chiral_restr 0.081 r_bond_other_d 0.007 r_bond_refined_d 0.004 r_gen_planes_refined 0.001 r_gen_planes_other
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 39 Nucleic Acid Atoms Solvent Atoms 3 Heterogen Atoms
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling PHASER phasing REFMAC refinement PDB_EXTRACT data extraction ADSC data collection