Modification and de novo design of non-ribosomal peptide synthetases using 
specific assembly points within condensation domains

Bozhueyuek, Kenan A. J.; Linck, Annabell; Tietze, Andreas; Kranz, Janik; Wesche, Frank; Nowak, Sarah; Fleischhacker, Florian; Shi, Yan-Ni; Gruen, Peter; Bode, Helge B.

doi:10.1038/s41557-019-0276-z

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Modification and de novo design of non-ribosomal peptide synthetases using specific assembly points within condensation domains

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Bozhueyuek, K. A. J., Linck, A., Tietze, A., Kranz, J., Wesche, F., Nowak, S., et al. (2019). Modification and de novo design of non-ribosomal peptide synthetases using specific assembly points within condensation domains. NATURE CHEMISTRY, 11(7), 653-661. doi:10.1038/s41557-019-0276-z.

Cite as: https://hdl.handle.net/21.11116/0000-000A-0479-A

Abstract

Non-ribosomal peptide synthetases (NRPSs) are giant enzyme machines that activate amino acids in an assembly line fashion. As NRPSs are not restricted to the incorporation of the 20 proteinogenic amino acids, their efficient manipulation would enable microbial production of a diverse range of peptides; however, the structural requirements for reprogramming NRPSs to facilitate the production of new peptides are not clear. Here we describe a new fusion point inside the condensation domains of NRPSs that results in the development of the exchange unit condensation domain (XUC) concept, which enables the efficient production of peptides, even containing non-natural amino acids, in yields up to 280 mg l(-1). This allows the generation of more specific NRPSs, reducing the number of unwanted peptide derivatives, but also the generation of peptide libraries. The XUC might therefore be suitable for the future optimization of peptide production and the identification of bioactive peptide derivatives for pharmaceutical and other applications.