Mechanism-Guided Design of Highly Efficient Protein Secretion and Lipid Conversion for Biomanufacturing and Biorefining.

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ID: 25987
2019
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Abstract
Bacterial protein secretion represents a significant challenge in biotechnology, which is essential for the cost-effective production of therapeutics, enzymes, and other functional proteins. Here, it is demonstrated that proteomics-guided engineering of transcription, translation, secretion, and folding of ligninolytic laccase balances the process, minimizes the toxicity, and enables efficient heterologous secretion with a total protein yield of 13.7 g L. The secretory laccase complements the biochemical limits on lignin depolymerization well in PD630. Further proteomics analysis reveals the mechanisms for the oleaginous phenotype of PD630, where a distinct multiunit fatty acid synthase I drives the carbon partition to storage lipid. The discovery guides the design of efficient lipid conversion from lignin and carbohydrate. The proteomics-guided integration of laccase-secretion and lipid production modules enables a high titer in converting lignin-enriched biorefinery waste to lipid. The fundamental mechanisms, engineering components, and design principle can empower transformative platforms for biomanufacturing and biorefining.
Reference Key
xie2019mechanismguidedadvanced Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Xie, Shangxian;Sun, Su;Lin, Furong;Li, Muzi;Pu, Yunqiao;Cheng, Yanbing;Xu, Bing;Liu, Zhihua;da Costa Sousa, Leonardo;Dale, Bruce E;Ragauskas, Arthur J;Dai, Susie Y;Yuan, Joshua S;
Journal Advanced science (Weinheim, Baden-Wurttemberg, Germany)
Year 2019
DOI
10.1002/advs.201801980
URL
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