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X-ray structure of a monoclinic form of alpha amylase from Aspergillus at 1.4 A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2TAA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6.5 298 Crystallized by sitting drop in Cryschem plates using 0.6 ml reservoirs of 20% PEG 3350 in 0.10 M MES buffer. 8 ul Drops composed of equal amounts of enzyme in water at 30 mg/ml and the reservoir solution
Crystal Properties Matthews coefficient Solvent content 2.06 40.21
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 64.983 α = 90 b = 95.189 β = 103.51 c = 74.988 γ = 90
Symmetry Space Group P 1 21 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 173 PIXEL DECTRIS PILATUS 300K 2019-02-21 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 8.3.1 1.0 ALS 8.3.1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Rrim I (All) Rpim I (All) CC (Half) 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 76.7 99.7 0.158 0.152 0.163 0.036 0.998 9.1 19.5 307462 22
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.43 1.45 98.8 0.98 0.4 13.3
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model 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-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 2TAA 1.4 72.91 1.33 147183 7368 84.56 0.2039 0.2022 0.2091 0.2366 0.2438 19.9776
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]
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 7366 Nucleic Acid Atoms Solvent Atoms 1259 Heterogen Atoms 218
Software Software Software Name Purpose PHENIX refinement PDB_EXTRACT data extraction XDS data reduction Aimless data scaling PHASER phasing