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  • Title: Cloning, expression, crystallization and preliminary X-ray crystallographic analysis of 3-dehydroquinate synthase, Xoo1243, from Xanthomonas oryzae pv. oryzae.
    Author: Ngo PT, Natarajan S, Kim H, Hung HK, Kim JG, Lee BM, Ahn YJ, Kang LW.
    Journal: Acta Crystallogr Sect F Struct Biol Cryst Commun; 2008 Dec 01; 64(Pt 12):1128-31. PubMed ID: 19052366.
    Abstract:
    The disease bacterial blight results in serious production losses of rice in Asian countries. The aroB gene encoding dehydroquinate synthase (DHQS), which is a potential antibiotic target, was identified from the plant-pathogenic bacterium Xanthomonas oryzae pv. oryzae (Xoo). DHQS plays an essential role in the synthesis of aromatic compounds in the shikimate pathway. The aroB gene (Xoo1243) was cloned from Xoo and the corresponding DHQS protein was subsequently overexpressed in Escherichia coli. The purified protein was crystallized using the hanging-drop vapour-diffusion method and yielded crystals that diffracted to 2.5 A resolution. The crystals belonged to the tetragonal space group P4(3)2(1)2, with unit-cell parameters a = b = 118.2, c = 98.2 A. According to a Matthews coefficient calculation, the crystal contained two molecules in the asymmetric unit, with a corresponding V(M) of 2.06 A(3) Da(-1) and a solvent content of 40.4%.
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