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Updated: Jul 10, 2026

From a Natural Product to Its Biosynthetic Gene Cluster: A Demonstration Using Polyketomycin from Streptomyces diastatochromogenes Tü6028
Published on: January 13, 2017
Crystallization and preliminary crystallographic analysis of an octaketide-producing plant type III polyketide
Hiroyuki Morita1, Shin Kondo, Ryohei Kato
1Mitsubishi Kagaku Institute of Life Sciences (MITILS), 11 Minamiooya, Machida, Tokyo 194-8511, Japan.
Abstract:
Octaketide synthase (OKS) from Aloe arborescens is a plant-specific type III polyketide synthase that produces SEK4 and SEK4b from eight molecules of malonyl-CoA. Recombinant OKS expressed in Escherichia coli was crystallized by the hanging-drop vapour-diffusion method. The crystals belonged to space group I422, with unit-cell parameters a = b = 110.2, c = 281.4 A, alpha = beta = gamma = 90.0 degrees . Diffraction data were collected to 2.6 A resolution using synchrotron radiation at BL24XU of SPring-8.
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