Research & Teaching Faculty

Default Header Image

High-Throughput ``FP-Tag'' Assay for the Identification of Glycosyltransferase Inhibitors

TitleHigh-Throughput ``FP-Tag'' Assay for the Identification of Glycosyltransferase Inhibitors
Publication TypeJournal Article
Year of Publication2019
AuthorsGao, Z, Ovchinnikova, OG, Huang, B-S, Liu, F, Williams, DE, Andersen, RJ, Lowary, TL, Whitfield, C, Withers, SG
JournalJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume141
Pagination2201-2204
Date PublishedFEB 13
ISSN0002-7863
Abstract

Bacterial capsular polysaccharides are important virulence factors. Capsular polysaccharides from several important Gram-negative pathogens share a conserved glycolipid terminus containing 3-deoxy-beta-D-manno-oct-2-ulosonic acid (beta-Kdo). The beta-Kdo glycosyltransferases responsible for synthesis of this conserved glycolipid belong to a new family of glycosyltransferases that shares little homology with other such enzymes, thereby representing an attractive antivirulence target. Here, we report the development of a fluorescence polarization-based, high-throughput screening assay (FP-tag) for beta-Kdo glycosyltransferases, and use it to identify a class of marine natural products as lead inhibitors. This ``FP-tag{''} assay should be readily adaptable to high-throughput screens of other glycosyltransferases.

DOI10.1021/jacs.8b10940