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1.4 Angstrom Resolution Crystal Structure of Putative alpha Amylase from Salmonella typhimurium.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2BHZ
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 5.5 295 Protein solution: 8.1 mG/mL, 0.25M Sodium chloride, 0.01M Tris-HCl (pH 8.3);
Screen solution: JCSG+, H11, 0.2M Magnesium chloride, 0.1M bis-Tris (pH 5.5), 25% w/v PEG 3350., VAPOR DIFFUSION, SITTING DROP, temperature 295K
Crystal Properties Matthews coefficient Solvent content 1.83 32.73
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 174.048 α = 90 b = 51.534 β = 101.18 c = 57.014 γ = 90
Symmetry Space Group C 1 2 1
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 MARMOSAIC 300 mm CCD Beryllium lenses 2010-02-21 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 21-ID-G 0.97856 APS 21-ID-G
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 1.4 30 99.5 0.039 28.1 3.7 97228 97228 -3 17.5
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) 1.4 1.42 96.3 0.378 2.9 2.9 4685
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-Factor (All) 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 2BHZ 1.4 29.79 92329 92329 4852 99.49 0.14913 0.14913 0.14789 0.1578 0.17265 0.1814 RANDOM 17.269
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] -0.37 0.24 0.3 0.16
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 32.11 r_dihedral_angle_4_deg 11.844 r_dihedral_angle_3_deg 11.544 r_dihedral_angle_1_deg 4.489 r_scangle_it 4.072 r_scbond_it 2.667 r_mcangle_it 2.137 r_angle_refined_deg 1.448 r_mcbond_it 1.265 r_angle_other_deg 0.883
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 32.11 r_dihedral_angle_4_deg 11.844 r_dihedral_angle_3_deg 11.544 r_dihedral_angle_1_deg 4.489 r_scangle_it 4.072 r_scbond_it 2.667 r_mcangle_it 2.137 r_angle_refined_deg 1.448 r_mcbond_it 1.265 r_angle_other_deg 0.883 r_mcbond_other 0.371 r_chiral_restr 0.093 r_bond_refined_d 0.013 r_gen_planes_refined 0.007 r_gen_planes_other 0.002 r_bond_other_d 0.001
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4963 Nucleic Acid Atoms Solvent Atoms 661 Heterogen Atoms 60
Software Software Software Name Purpose Blu-Ice data collection PHASER phasing REFMAC refinement HKL-2000 data reduction HKL-2000 data scaling