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2019-12-28 FUT8 manuscript.pdf (488.24 kB)
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Enzymatic Synthesis of a Fluorogenic Reporter Substrate and a High-Throughput Assay for Fucosyltransferase VIII Provide a Toolkit to Probe and Inhibit Core Fucosylation

preprint
submitted on 27.12.2019 and posted on 30.12.2019 by Maxim Soroko, David Kwan
We report a straight-forward enzymatic synthesis of the 4-methylumbelliferyl glycoside of a complex-type oligosaccharide substrate for core-fucosylation. We demonstrate the use of this synthetic glycoconjugate in a newly developed enzyme assay to probe the activity and inhibition of fucosyltransferase VIII, which catalyzes the core fucosylation of N-glycans on eukaryotic glycoproteins. In this fucosyltransferase assay, we use the fluorogenic probe and a specific glycosidase in a sequential coupled enzyme reaction to distinguish an unmodified 4-methylumbelliferyl oligosaccharide probe from a fucosylated probe. Our findings show that this strategy is very sensitive and very specific in its detection of enzyme activity and can even be used for analyzing impure tissue lysate samples.

Funding

NSERC Discovery Grant (RGPIN-2016-05464)

Concordia Independent Seed Funding Grant

Petro-Canada Young Innovator Award

History

Email Address of Submitting Author

david.kwan@concordia.ca

Institution

Concordia University

Country

Canada

ORCID For Submitting Author

0000-0003-2061-7799

Declaration of Conflict of Interest

No conflict of interest

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