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Exoglycosidases

NEB offers a wide selection of exoglycosidases for glycobiology research. Exoglycosidases are glycoside hydrolase enzymes that cleave the glycosidic linkage of a terminal monosaccharide in an oligosaccharide or polysaccharide. Because each residue is removed separately, a series of exoglycosidases, each one cleaving at a specific glycolic linkage, is needed. These exoglycosidases can be used to remove a terminal sugar residue, to determine the sequence of a glycan, or for modifying glycans on glycoproteins.

Many of these reagents are recombinant, and all undergo several quality control assays, enabling us to provide products with lower unit cost, high purity, and reduced lot-to-lot variation. All of our glycosidases are tested for contaminants. Since p-nitrophenyl-glycosides are not hydrolyzed by some exoglycosidases, we use only flourescently-labeled oligosaccharides to assay activity and screen for contaminating glycosidases.

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    Publications related to Exoglycosidases
    • Vainauskas, S., Kirk, C.H., Petralia, L., Guthrie, E.P., McLeod, E., Bielik, A., Luebbers, A., Foster, J.M., Hokke, C.H., Rudd, P.M., Shi, X., Taron, C.H (2018) A novel broad specificity fucosidase capable of core a1-6 fucose release from N-glycans labeled with urea-linked fluorescent dyes Sci Rep; PubMedID: 29934601, DOI: 1038/s41598-018-27797-0
    • Albrecht, S., Vainauskas, S., Stöckmann, H., McManus, C., Taron, C.H. and Rudd, P.M. (2016) Comprehensive Profiling of Glycosphingolipid Glycans Using a Novel Broad Specificity Endoglycoceramidase in a High-Throughput Workflow. Anal Chem; May 3;88(9), 4795-802. Anal Chem.. PubMedID: 27033327
    • O'Flaherty, Roisin, Harbison, Aoife M., Hanley, Philip J., Fadda, Elisa, Rudd, Pauline, Taron, Chris (2017) Aminoquinoline fluorescent labels obstruct efficient removal of N-glycan corex J Proteome Res; 16, 4237-4243.
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This product is intended for research purposes only. This product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.


Videos

  • Glycobiology_Animation_thumb

    Overview of Glycobiology

    Learn about the core sequences and common modifications of N-linked and O-linked glycans in this video. Analysis of these glycans can be accomplished with the use of deglycosylation enzymes, which can provide complete sugar removal with no protein degradation.

  • Jove_Video_thumb

    Identification and Characterization of Protein Glycosylation

    Learn how glycosidases are used to analyze multiple glycoprotein samples. Here, the model glycoprotein, hCGβ, which carries both N- and O-glycans, is demonstrated.