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- W2024004932 endingPage "203" @default.
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- W2024004932 abstract "Abstract Substantial progress has been made in studies on enzymes synthesizing UDP-glucose (UDPG) which is essential for sucrose and cell wall biosynthesis, and in an array of other processes, e.g. glycosylation of proteins and lipids. The enzymes include UDPG pyrophosphorylase, UDP-sugar pyrophosphorylase (USPase) and sucrose synthase (SuSy). Genes coding for those proteins are under complex spatial and temporal regulation, and are frequently coexpressed. Recent evidence for regulation of some of the UDPG-synthesizing proteins by posttranslational modifications and oligomerization, together with discoveries of novel isozymes and unexpected locations within a cell (including chloroplasts and mitochondria) have made the studies exciting, but complex. The enzymes differ in specificity for sugar and nucleotide portions of their substrates/products, and may be involved in distinct metabolic pathways, but also in signaling. Homology models for USPase and SuSy structures are presented, based on recent crystallization of structurally related proteins. Future challenges in research on UDPG-producing enzymes are underlined. Keywords: Cell wall synthesisinvertaseprotein structuresucrose metabolismsucrose synthaseUDP-glucose pyrophos-phorylaseUDP-N-acetylglucosamine pyrophosphorylaseUDP-sugar pyrophosphorylase ACKNOWLEDGMENT This work was supported by The Swedish Research Council. Referee: Professor Edgardo Etxeberria, Citrus Research and Education Center, University of Florida/IFAS, 700 Experiment Station Road, Lake Alfred, Florida, 33850-2299 USA" @default.
- W2024004932 created "2016-06-24" @default.
- W2024004932 creator A5014814187 @default.
- W2024004932 creator A5031959644 @default.
- W2024004932 creator A5063899670 @default.
- W2024004932 date "2010-07-08" @default.
- W2024004932 modified "2023-10-18" @default.
- W2024004932 title "Mechanisms of UDP-Glucose Synthesis in Plants" @default.
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