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Structural Insights into Polyhydroxyalkanoates Biosynthesis
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DOI：10.1016/j.tibs.2018.08.005.png)
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Abstract
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Polyhydroxyalkanoates (PHAs) are diverse biopolyesters produced by numerous microorganisms and have attracted much attention as a substitute for petroleum-based polymers. Despite several decades of study, the detailed molecular mechanisms of PHA biosynthesis have remained unknown due to the lack of structural information on the key PHA biosynthetic enzyme PHA synthase. The recently determined crystal structure of PHA synthase, together with the structures of acetyl-coenzyme A (CoA) acetyltransferase and reductase, have changed this situation. Structural and biochemical studies provided important clues for the molecular mechanisms of each enzyme as well as the overall mechanism of PHA biosynthesis from acetyl-CoA. This new information and knowledge is expected to facilitate production of designed novel PHAs and also enhanced production of PHAs.
Keywords:
RALSTONIA-EUTROPHA H16
TRANSMISSION ELECTRON-MICROSCOPY
GRANULE-ASSOCIATED PROTEINS
ALCALIGENES-EUTROPHUS
CRYSTAL-STRUCTURE
POLYHYDROXYBUTYRATE SYNTHASE
PSEUDOMONAS-AERUGINOSA
ESCHERICHIA-COLI
PHA SYNTHASE
BACILLUS-MEGATERIUM
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