Directed evolution of a gatekeeper domain in nonribosomal peptide synthesis.

Abstract excerpt

Modular natural products are biosynthesized by series of enzymes that activate, assemble, and process a nascent chain of building blocks. Adenylation domains are gatekeepers in nonribosomal peptide biosynthesis, providing the entry point for assembly of typical peptide-based natural products. We report the directed evolution of an adenylation domain based on a strategy of using a weak, promiscuous activity as a...

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