Conversion of acetate and glyoxylate to fumarate by a cell-free synthetic enzymatic biosystem

Autor: Congli Hou, Linyue Tian, Guoli Lian, Li-Hai Fan, Zheng-Jun Li
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Synthetic and Systems Biotechnology, Vol 8, Iss 2, Pp 235-241 (2023)
Druh dokumentu: article
ISSN: 2405-805X
DOI: 10.1016/j.synbio.2023.03.004
Popis: Fumarate is a value-added chemical that is widely used in food, medicine, material, and agriculture industries. With the rising attention to the demand for fumarate and sustainable development, many novel alternative ways that can replace the traditional petrochemical routes emerged. The in vitro cell-free multi-enzyme catalysis is an effective method to produce high value chemicals. In this study, a multi-enzyme catalytic pathway comprising three enzymes for fumarate production from low-cost substrates acetate and glyoxylate was designed. The acetyl-CoA synthase, malate synthase, and fumarase from Escherichia coli were selected and the coenzyme A achieved recyclable. The enzymatic properties and optimization of reaction system were investigated, reaching a fumarate yield of 0.34 mM with a conversion rate of 34% after 20 h of reaction. We proposed and realized the conversion of acetate and glyoxylate to fumarate in vitro using a cell-free multi-enzyme catalytic system, thus providing an alternative approach for the production of fumarate.
Databáze: Directory of Open Access Journals