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A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products

A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products

Published on: October 4, 2019

Engineering synthetic recursive pathways to generate non-natural small molecules.

Elizabeth A Felnagle¹, Asha Chaubey, Elizabeth L Noey

¹Department of Chemical and Biomolecular Engineering, University of California-Los Angeles, Los Angeles, California, USA.

Nature Chemical Biology

|May 19, 2012

Summary

Researchers created a new artificial pathway for alpha-keto acid (AKA) elongation, expanding the potential of synthetic recursive pathways beyond natural product synthesis. This study highlights challenges and opportunities in enzyme engineering for novel biochemical routes.

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Area of Science:

Synthetic biology and metabolic engineering
Enzyme catalysis and pathway design

Background:

Recursive pathways regenerate key functional groups, enabling cyclical reactions.
Nature utilizes recursive carbon-chain elongation for fatty acids, polyketides, isoprenoids, and alpha-keto acids (AKAs) via modular or iterative methods.

Purpose of the Study:

To engineer an artificial recursive pathway for alpha-keto acid (AKA) elongation.
To explore the challenges and potential of constructing synthetic recursive pathways from non-recursive enzymes.

Main Methods:

Engineered an isopropylmalate synthase enzyme.
Developed a synthetic pathway for recursive condensation of acetyl-CoA with AKAs.

Main Results:

Successfully built an artificial pathway for recursive AKA elongation.
Demonstrated a synthetic approach expanding recursive pathway possibilities beyond natural product synthesis.

Conclusions:

The engineered pathway serves as a case study for building recursive systems from non-recursive enzymes.
Significant potential exists for designing novel synthetic recursive pathways exceeding nature's evolved capabilities.