Mechanism‐Guided Design of Highly Efficient Protein Secretion and Lipid Conversion for Biomanufacturing and Biorefining
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&,M University College Station TX 77843 USA
- Joint Institute for Biological Sciences and Biosciences DivisionOak Ridge National Laboratory Oak Ridge TN 37831 USA
- Department of Chemical Engineering and Materials ScienceMichigan State University East Lansing MI 48824 USA
- Joint Institute for Biological Sciences and Biosciences DivisionOak Ridge National Laboratory Oak Ridge TN 37831 USA, Department of Chemical and Biomolecular Engineering &, Department of Forestry, Wildlife, and FisheriesUniversity of Tennessee Knoxville TN 37996 USA
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&,M University College Station TX 77843 USA, State Hygienic LaboratoryUniversity of Iowa Coralville IA 52246 USA
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-1. The secretory laccase complements the biochemical limits on lignin depolymerization well in Rhodococcus opacus PD630. Further proteomics analysis reveals the mechanisms for the oleaginous phenotype of R. opacus 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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- EE0006112; EE0007104; EE0008250; AC05-00OR22725
- OSTI ID:
- 1510339
- Alternate ID(s):
- OSTI ID: 1510340; OSTI ID: 1530062; OSTI ID: 1606678
- Journal Information:
- Advanced Science, Journal Name: Advanced Science; ISSN 2198-3844
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- Germany
- Language:
- English
Web of Science
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