ATP regulation in bioproduction

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• 作者：Kiyotaka Y. Hara ; Akihiko Kondo
• 关键词：ATP ; Bioproduction ; Energy metabolism ; Metabolic engineering ; Synthetic bioengineering
• 刊名：Microbial Cell Factories
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：14
• 期：1
• 全文大小：1,863 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Biotechnology
  Applied Microbiology
  Environmental Engineering/Biotechnology
  
• 出版者：BioMed Central
• ISSN：1475-2859

文摘

Adenosine-5′-triphosphate (ATP) is consumed as a biological energy source by many intracellular reactions. Thus, the intracellular ATP supply is required to maintain cellular homeostasis. The dependence on the intracellular ATP supply is a critical factor in bioproduction by cell factories. Recent studies have shown that changing the ATP supply is critical for improving product yields. In this review, we summarize the recent challenges faced by researchers engaged in the development of engineered cell factories, including the maintenance of a large ATP supply and the production of cell factories. The strategies used to enhance ATP supply are categorized as follows: addition of energy substrates, controlling pH, metabolic engineering of ATP-generating or ATP-consuming pathways, and controlling reactions of the respiratory chain. An enhanced ATP supply generated using these strategies improves target production through increases in resource uptake, cell growth, biosynthesis, export of products, and tolerance to toxic compounds.