Biochemische Untersuchungen aromatischer Prenyltransferasen der ABBA-Superfamilie

  • Bonitz, Tobias
Publication date
January 2013
Publisher
Universität Tübingen

Abstract

The linkage of isoprenoid and aromatic moieties, catalyzed by aromatic prenyltransferases (PTases), leads to an impressive diversity of primary and secondary metabolites, including important pharmaceuticals and toxins (e.g. ubiquinone derivatives and ergot alkaloids). In 2005, a hydroxynaphthalene PTase, NphB, featuring a novel ten-stranded b-barrel fold, was identified in Streptomycetes. This fold, termed the PT-barrel, remained exclusive to the NphB family until its recent discovery in the DMATS family of indole PTases. Members of both families exist only in fungi and bacteria, and all investigated members catalyze the prenylation of aromatic substrates in the biosynthesis of secondary metabolites. Sequence comparisons using PSI-BLAST do ...

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