Malonyl-CoA pathway: a promising route for 3-hydroxypropionate biosynthesis. (3rd October 2017)

• Record Type: Journal Article
• Authors: Liu, Changshui; Ding, Yamei; Xian, Mo; Liu, Min; Liu, Huizhou; Ma, Qingjun; Zhao, Guang
• Is Part Of: Critical reviews in biotechnology. Volume 37:Number 7(2017)
• Page Start: 933
• Page End: 941
• Publication Date: 2017-10-03
• Subjects: 3-Hydroxypropionate -- malonyl-CoA pathway -- metabolic engineering -- acetyl-CoA carboxylase -- malonyl-CoA reductase -- carbon flux -- enzyme engineering -- supply of energy and cofactor -- 3HP tolerance; Biotechnology -- Periodicals; Biotechnology -- Periodicals; Review Literature -- Periodicals; Public Health -- Periodicals; Environment -- Periodicals; Industry -- Periodicals; Biotechnology; Review Literature; Public Health; Environment; Industry; 660.6
• DOI: 10.1080/07388551.2016.1272093
• Languages: English
• ISSNs: 0738-8551

Abstract

Abstract: 3-Hydroxypropionate (3HP) is an attractive platform chemical, serving as a precursor to a variety of commodity chemicals like acrylate and acrylamide, as well as a monomer of a biodegradable plastic. To establish a sustainable way to produce these commercially important chemicals and materials, fermentative production of 3HP is widely investigated in recent years. It is reported that 3HP can be produced from several intermediates, such as glycerol, malonyl-CoA, and β-alanine. Among all these biosynthetic routes, the malonyl-CoA pathway has some distinct advantages, including a broad feedstock spectrum, thermodynamic feasibility, and redox neutrality. To date, this pathway has been successfully constructed in various species including Escherichia coli, yeast and cyanobacteria, and optimized through carbon flux redirection, enzyme screening and engineering, and an increasing supply of energy and cofactors, resulting in significantly enhanced 3HP titer up to 40 g/L. These results show the feasibility of commercial manufacturing of 3HP and its derivatives in the future.