Chemoenzymatic Synthesis of Keratan Sulfate Oligosaccharides Using UDP-Galactose-6-aldehyde To Control Sulfation at Galactosides
Keratan sulfate (KS) is a highly complex proteoglycan that has a poly-LacNAc chain that can be modified by diverse patterns of sulfate esters at C-6 positions of galactoside (Gal) and N-acetylglucosamine (GlcNAc) residues. Here, a chemo-enzymatic methodology is described that can control the pattern...
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Veröffentlicht in: | Organic letters 2024-10, Vol.26 (39), p.8272-8277 |
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Hauptverfasser: | , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Keratan sulfate (KS) is a highly complex proteoglycan that has a poly-LacNAc chain that can be modified by diverse patterns of sulfate esters at C-6 positions of galactoside (Gal) and N-acetylglucosamine (GlcNAc) residues. Here, a chemo-enzymatic methodology is described that can control the pattern of sulfation at Gal using UDP-Gal-aldehyde as a donor for poly-LacNAc assembly to temporarily block specific sites from sulfation by galactose 6-sulfotransferase (CHST1). |
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ISSN: | 1523-7060 1523-7052 1523-7052 |
DOI: | 10.1021/acs.orglett.4c02899 |