ALKYNYL SUGAR ANALOGS FOR LABELING AND VISUALIZATION OF GLYCOCONJUGATES IN CELLS

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United States of America Patent

APP PUB NO 20190269227A1
SERIAL NO

16415411

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Abstract

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The present disclosure relates to a method for metabolic oligosaccharide engineering that incorporates derivatized alkyne-bearing sugar analogs as “tags” into cellular glycoconjugates. The disclosed method incorporates alkynyl derivatized Fuc and alkynyl derivatized ManNAc sugars into a cellular glycoconjugate. A chemical probe comprising an azide group and a visual probe or a fluorogenic probe is used to label the alkyne-derivatized sugar-tagged glycoconjugate. In one aspect, the chemical probe binds covalently to the alkynyl group by Cu(I)-catalyzed [3+2] azide-alkyne cycloaddition and is visualized at the cell surface, intracellularly, or in a cellular extract. The labeled glycoconjugate is capable of detection by flow cytometry, SDS-PAGE, Western blot, ELISA or confocal microscopy, and mass spectrometry.

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Patent Owner(s)

Patent OwnerAddress
ACADEMIA SINICANANKANG TAIPEI 115

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
HANSON, Sarah R San Marcos, US 9 170
HSU, Tsui-Ling Taipei City, TW 21 456
SAWA, Masaaki Ibaraki, JP 30 148
WONG, Chi-Huey Rancho Santa Fe, US 212 2869

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