Campus Units

Biochemistry, Biophysics and Molecular Biology, Roy J. Carver Department of

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

9-2016

Journal or Book Title

Metabolic Engineering

Volume

37

First Page

24

Last Page

34

DOI

10.1016/j.ymben.2016.04.001

Abstract

Diterpenes are widely distributed across many biological kingdoms, where they serve a diverse range of physiological functions, and some have significant industrial utility. Their biosynthesis involves class I diterpene synthases (DTSs), whose activity can be preceded by that of class II diterpene cyclases (DTCs). Here, a modular metabolic engineering system was used to examine the promiscuity of DTSs. Strikingly, both a bacterial and plant DTS were found to exhibit extreme promiscuity, reacting with all available precursors with orthogonal activity, producing an olefin or hydroxyl group, respectively. Such DTS promiscuity enables combinatorial biosynthesis, with remarkably high yields for these unoptimized non-native enzymatic combinations (up to 15 mg/L). Indeed, it was possible to readily characterize the 13 unknown products. Notably, 16 of the observed diterpenes were previously inaccessible, and these results provide biosynthetic routes that are further expected to enable assembly of more extended pathways to produce additionally elaborated ‘non-natural’ diterpenoids.

Comments

This is a manuscript of an article published as Jia, Meirong, Kevin C. Potter, and Reuben J. Peters. "Extreme promiscuity of a bacterial and a plant diterpene synthase enables combinatorial biosynthesis." Metabolic engineering 37 (2016): 24-34. doi: 10.1016/j.ymben.2016.04.001. Posted with permission.

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Copyright Owner

International Metabolic Engineering Society

Language

en

File Format

application/pdf

Published Version

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