Biology; Chemistry and chemical biology; Chemical and biological engineering; Biomedical engineering
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Filter-entrapment enrichment pull-down assay for glycosaminoglycan structural characterization and protein interaction, Y. Yu, F. Zhang, G. Renois-Predelus, I. J. Amster, R. J. Linhardt, Carbohydrate Polymers, 245, 116623, 2020.
Heparins are the most pharmaceutically important polysaccharides. These heparin-based anticoagulant/antithrombotic agents include unfractionated heparins, low molecular weight heparins (LMWHs) and ultralow molecular weight heparins (ULMWHs). Heparins exhibit their pharmacological and biological activities through interaction with heparin-binding proteins. The prototypical heparin-binding protein is antithrombin III (AT), responsible for heparin's anticoagulant/antithrombotic activity. This study describes a filter-trapping method to isolate the chains in enoxaparin, a LMWH, which bind to AT. We demonstrate this method using the ULMWH, fondaparinux, which consists of a single well defined AT binding site. The interacting chains of enoxaparin are then characterized by activity assays, top-down liquid chromatography-mass spectrometry, and capillary zone electrophoresis mass spectrometry. This filter-trapping assay is an improvement over affinity chromatography for isolating heparin chains interacting with heparin binding proteins.;
Carbohydrate Polymers, 245, 116623; Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
The Linhardt Research Labs.; The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS);
The Linhardt Research Labs Online Collection; Rensselaer Polytechnic Institute, Troy, NY; Carbohydrate Polymers; https://harc.rpi.edu/;