Abstract
The SGNH hydrolase family includes enzymes that catalyze the hydrolysis of a broad range of substrates. Here, the crystallization and preliminary X-ray crystallographic studies of a novel SGNH hydrolase (Est24) from Sinorhizobium meliloti were performed. Recombinant Est24 protein containing an N-terminal His tag was expressed in Escherichia coli and purified to homogeneity. Est24 was then crystallized using a solution consisting of 0.2 M ammonium phosphate pH 4.6, 20% polyethylene glycol 3350. X-ray diffraction data were collected to a resolution of 1.45 Å with an R(merge) of 9.4%. The Est24 crystals belonged to space group C2, with unit-cell parameters a = 129.09, b = 88.63, c = 86.15 Å, α = 90.00, β = 114.30, γ = 90.00°. A molecular-replacement solution was obtained using the crystal structure of Mycobacterium smegmatis arylesterase as a template and structure refinement of Est24 is in progress.
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Schedule a callMore From: Acta crystallographica. Section F, Structural biology communications
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