Journal
NATURE REVIEWS CHEMISTRY
Volume 4, Issue 3, Pages 114-126Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41570-020-0163-6
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Funding
- National Key Research and Development Program of China [2019YFA0706900]
- Hubei Natural Science Foundation [2017CFB158]
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Plant biomass is an abundant renewable resource on Earth. Microorganisms harvest energy from plant material by means of complex enzymatic systems that efficiently degrade natural polymers. Intriguingly, microorganisms have evolved to exploit these ancient mechanisms to also decompose synthetic plastic polymers. In this Review, we summarize the mechanisms by which they decompose non-starch plant biomass and the six major types of synthetic plastics. We focus on the structural features of the enzymes that contribute to substrate recognition and then describe the catalytic mechanisms of polymer metabolism. An understanding of these natural biocatalysts is valuable if we are to exploit their potential for the degradation of synthetic polymers.
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