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The structure of human pancreatic alpha-amylase at 1.8 angstroms resolution and comparisons with related enzymes
Crystallization Crystal Properties Matthews coefficient Solvent content 2.43 49.48
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 53.04 α = 90 b = 74.8 β = 90 c = 137.34 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 IMAGE PLATE RIGAKU M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1
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 1.8 36.6 82.1 0.055 3 42316 2
Refinement Statistics Diffraction ID Structure Solution 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-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION 1.8 8 2 41646 81.9 0.174 0.174 22.71
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_scangle_it 3.87 x_scbond_it 2.661 x_mcangle_it 2.461 x_mcbond_it 1.641 x_bond_d 0.016 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot
RMS Deviations Key Refinement Restraint Deviation x_scangle_it 3.87 x_scbond_it 2.661 x_mcangle_it 2.461 x_mcbond_it 1.641 x_bond_d 0.016 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d x_improper_angle_d_na x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3946 Nucleic Acid Atoms Solvent Atoms 359 Heterogen Atoms 2
Software Software Software Name Purpose MSC data collection X-PLOR model building PROLSQ refinement X-PLOR refinement MSC data reduction X-PLOR phasing