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. 2004 Mar 31;126(12):3694-5.
doi: 10.1021/ja039328t.

Biosynthetic origin of the rare nitroaryl moiety of the polyketide antibiotic aureothin: involvement of an unprecedented N-oxygenase

Jing He  1 , Christian Hertweck
Affiliations

Biosynthetic origin of the rare nitroaryl moiety of the polyketide antibiotic aureothin: involvement of an unprecedented N-oxygenase

Jing He et al. J Am Chem Soc. .

Abstract

The antibiotic aureothin is a rare natural nitroaromatic compound produced by Streptomyces thioluteus. By labeling experiments, we demonstrate for the first time that p-nitrobenzoate (PNBA) serves as a polyketide synthase starter unit. Cloning, heterologous expression, and inactivation experiments reveal that this unusual primer is synthesized from p-aminobenzoate (PABA) by means of AurF, a novel N-oxygenase.

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