Catalytic Control of Spiroketal Formation in Rubromycin Polyketide Biosynthesis.

Abstract excerpt

The medically important bacterial aromatic polyketide natural products typically feature a planar, polycyclic core structure. An exception is found for the rubromycins, whose backbones are disrupted by a bisbenzannulated [5,6]-spiroketal pharmacophore that was recently shown to be assembled by flavin-dependent enzymes. In particular, a flavoprotein monooxygenase proved critical for the drastic oxidative...

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