ArticleMethods in molecular biology (Clifton, N.J.)2024
9-Fluorenylmethyl Chloroformate Labeling for O-Glycan Analysis.
Article in Methods in molecular biology (Clifton, N.J.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Structural analysis of O-glycans from mucins and characterization of the interaction of these glycans with other biomolecules are essential for a full understanding of mucins. Various techniques have been developed for the structural and functional analysis of glycans. While 9-fluorenylmethyl chloroformate (Fmoc-Cl) is generally used to protect amino groups in peptide synthesis, it can also be used as a glycan-labeling reagent for structural analysis. Fmoc-labeled glycans are strongly fluorescent and can be analyzed with high sensitivity using liquid chromatography-fluorescence detection (LC-FD) analysis as well as being analyzed with high sensitivity by matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS). Fmoc-labeled glycans can be easily delabeled and converted to glycosylamine-form or free (hemiacetal or aldehyde)-form glycans that can be used to fabricate glycan arrays or synthesize glycosyl dendrimers. This derivatization allows for the isolation from biological samples of glycans that are difficult to synthesize chemically, as well as the fabrication of immobilized-glycan devices. The Fmoc labeling method promises to be a tool for accelerating O-glycan structural analysis and an understanding of molecular interactions. In this chapter, we introduce the Fmoc labeling method for analysis of O-glycans and fabrication of O-glycan arrays.
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