Improvement of alka(e)ne production in Escherichia coli by the 3′-UTR engineering of acyl-ACP reductase

IF 3.7 3区 生物学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Jiahu Han, Takuya Matsumoto, Ryosuke Yamada, Hiroyasu Ogino
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引用次数: 0

Abstract

The sustainable and efficient production of biofuels has generated considerable interest in the microbial synthesis of alka(e)nes, which are promising alternatives to fossil fuels. Acyl-ACP reductase (AAR) is a critical enzyme in the alka(e)ne biosynthetic pathway, and its poor solubility in Escherichia coli is a major bottleneck during the optimization of production yields. The approaches for enhancing protein solubility typically include the fusion of solubility tags at the N- or C-termini of target proteins, which can sometimes interfere with protein function or stability. The present study developed a novel strategy that leverages the regulatory potential of 3′-untranslated regions (3′-UTRs) by integrating the sequence coding thioredoxin (Trx), small ubiquitin-like modifier (SUMO), maltose-binding protein (MBP), or N-utilization substance protein A (NusA), into the 3′-UTR of the AAR gene. The strategy aimed to enhance the stability of AAR mRNA for improving the solubility and expression of AAR without altering its primary structure. The findings revealed that this strategy significantly enhanced the solubility and expression levels of AAR in Escherichia coli, which markedly increased alka(e)ne production. This method has potential widespread applications in metabolic engineering and synthetic biology. The study paves the way for the development of more efficient strategies aimed at producing biofuels, and highlights the untapped potential of the 3′-UTR engineering strategy.
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来源期刊
Biochemical Engineering Journal
Biochemical Engineering Journal 工程技术-工程:化工
CiteScore
7.10
自引率
5.10%
发文量
380
审稿时长
34 days
期刊介绍: The Biochemical Engineering Journal aims to promote progress in the crucial chemical engineering aspects of the development of biological processes associated with everything from raw materials preparation to product recovery relevant to industries as diverse as medical/healthcare, industrial biotechnology, and environmental biotechnology. The Journal welcomes full length original research papers, short communications, and review papers* in the following research fields: Biocatalysis (enzyme or microbial) and biotransformations, including immobilized biocatalyst preparation and kinetics Biosensors and Biodevices including biofabrication and novel fuel cell development Bioseparations including scale-up and protein refolding/renaturation Environmental Bioengineering including bioconversion, bioremediation, and microbial fuel cells Bioreactor Systems including characterization, optimization and scale-up Bioresources and Biorefinery Engineering including biomass conversion, biofuels, bioenergy, and optimization Industrial Biotechnology including specialty chemicals, platform chemicals and neutraceuticals Biomaterials and Tissue Engineering including bioartificial organs, cell encapsulation, and controlled release Cell Culture Engineering (plant, animal or insect cells) including viral vectors, monoclonal antibodies, recombinant proteins, vaccines, and secondary metabolites Cell Therapies and Stem Cells including pluripotent, mesenchymal and hematopoietic stem cells; immunotherapies; tissue-specific differentiation; and cryopreservation Metabolic Engineering, Systems and Synthetic Biology including OMICS, bioinformatics, in silico biology, and metabolic flux analysis Protein Engineering including enzyme engineering and directed evolution.
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