Crystallization and Preliminary X-ray Diffraction Study of Purine Nucleoside Phosphorylase from the Thermophilic Bacterium Thermus thermophilus Strain HB27
Crystallography Reports(2018)
摘要
Recombinant purine nucleoside phosphorylase from the thermophilic Thermus thermophilus strain encoded by the TT_C0194 gene was purified to homogeneity. The crystallization conditions for the enzyme were found by the vapor-diffusion technique. The crystals of the enzyme suitable for X-ray diffraction were grown under microgravity conditions by the capillary counter-diffusion method. The crystals belong to sp. gr. P 2 1 2 1 2 1 and have the following unit-cell parameters: a = 89.9 Å, b = 121.0 Å, c = 215.7 Å, α = β = γ = 90°. The X-ray diffraction data set suitable for the determination of the three-dimensional structure of purine nucleoside phosphorylase was collected from the grown crystals at the SPring-8 synchrotron facility to 2.5 Å resolution.
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