BMC Biotechnol 2017 04 14;17(1):38. Epub 2017 Apr 14.
Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, People's Republic of China.
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Microb Cell Fact 2017 Jul 17;16(1):121. Epub 2017 Jul 17.
Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia.
Background: Propionic acid is used primarily as a food preservative with smaller applications as a chemical building block for the production of many products including fabrics, cosmetics, drugs, and plastics. Biological production using propionibacteria would be competitive against chemical production through hydrocarboxylation of ethylene if native producers could be engineered to reach near-theoretical yield and good productivity. Unfortunately, engineering propionibacteria has proven very challenging. Read More
J Ind Microbiol Biotechnol 2015 Jul 7;42(7):1057-72. Epub 2015 May 7.
Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada.
Mounting environmental concerns associated with the use of petroleum-based chemical manufacturing practices has generated significant interest in the development of biological alternatives for the production of propionate. However, biological platforms for propionate production have been limited to strict anaerobes, such as Propionibacteria and select Clostridia. In this work, we demonstrated high-level heterologous production of propionate under microaerobic conditions in engineered Escherichia coli. Read More
Biochemistry 2000 Apr;39(16):4622-9
Department of Biochemistry, University of Illinois, Urbana, Illinois 61801, USA.
The Escherichia coli genome encodes seven paralogues of the crotonase (enoyl CoA hydratase) superfamily. Four of these have unknown or uncertain functions; their existence was unknown prior to the completion of the E. coli genome sequencing project. Read More
Microbiol Res 2009 23;164(1):1-8. Epub 2008 Oct 23.
Department of Biochemistry and Molecular Biology, University of Calgary, 3330 Hospital Drive NW, Calgary, AB, Canada T2N 4N1.
In Escherichia coli, a four-gene operon, sbm-ygfD-ygfG-ygfH, has been shown to encode a putative cobalamin-dependent pathway with the ability to produce propionate from succinate in vitro [Haller T, Buckel T, Retey J, Gerlt JA. Discovering new enzymes and metabolic pathways: conversion of succinate to propionate by Escherichia coli. Biochemistry 2000;39:4622-4629]. Read More