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Primary structure of human milk nona- and decasaccharides determined by a combination of fast atom bombardment mass spectrometry and 1H-/13C-nuclear magnetic resonance spectroscopy. Evidence for a new core structure, iso-lacto-N-octaose.

Authors
  • Strecker, G
  • Wieruszeski, J M
  • Michalski, J C
  • Montreuil, J
Type
Published Article
Journal
Glycoconjugate journal
Publication Date
Jan 01, 1989
Volume
6
Issue
2
Pages
169–182
Identifiers
PMID: 2535482
Source
Medline
License
Unknown

Abstract

The structure of a nonasaccharide and of two decasaccharides isolated from human milk has been investigated by using methylation, fast atom bombardment mass spectrometry and 1H-/13C-nuclear magnetic resonance spectroscopy. The structures of these oligosaccharides were: trifucosyllacto-N-hexaose; Fuc alpha 1-2Gal beta 1-3(Fuc alpha 1-4)GlcNAc beta 1-3[Gal beta 1-4(Fuc alpha 1-3)GlcNAc beta 1-6]Gal beta 1-4Glc, difucosyllacto-N-octaoses; Gal beta 1-3(Fuc alpha 1-4)GlcNAc beta 1-3Gal beta 1-4(Fuc alpha 1-3)GlcNAc beta 1-6[Gal beta 1-3GlcNAc beta 1-3]Gal beta 1-4Glc and Gal beta 1-3GlcNAc beta 1-3Gal beta 1-4(Fuc alpha 1-3)GlcNAc beta 1-6[Fuc alpha 1-3 Gal beta 1-3GlcNAc beta 1-3]Gal beta 1-4Glc. The two decasaccharides possess a new type of core structure proposed to be named iso-lacto-N-octaose.

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