Amplified Visualization of Protein-Specific Glycosylation in Zebrafish via Proximity-Induced Hybridization Chain Reaction
- 8 November 2018
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 140 (48), 16589-16595
- https://doi.org/10.1021/jacs.8b08442
Abstract
The visualization of glycosylation states of specific proteins in vivo is of great importance for uncovering their roles in disease development. However, the ubiquity of glycosylation makes probing the glycans on a certain protein difficult as looking for a needle in a haystack. Herein, we demonstrate a proximity-induced hybridization chain reaction (HCR) strategy for amplified visualization of protein-specific glycosylation. The strategy relies on designing two kinds of DNA probes, glycan conversion probes and protein recognition probes, which are attached to glycans and target proteins respectively. Upon sequential binding to the targets, the proximity-induced hybridization between two probes occurs, which leads to the structure-switching of protein recognition probes, followed by triggered HCR assembly. This strategy has been used to visualize tyrosine-protein kinase 7 (PTK7)-specific sialic acid in living CEM cells and zebrafish, and monitor its variation during drug treatment. It provides a potential tool for investigating protein-specific glycosylation, and researching the relation between dynamic glycans state with disease process.Funding Information
- Ministry of Education of the People's Republic of China (IRT15R11)
- Natural Science Foundation of Fujian Province (2016J05035, 2017J06004)
- National Natural Science Foundation of China (21605023, 21622502, 21505021, 21475026)
- Fujian Province (KJ2016-2-23)
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