Structural features of N-glycans linked to glycoproteins expressed in three kinds of water plants: Predominant occurrence of the plant complex type N-glycans bearing Lewis a epitope

Megumi Maeda, Misato Tani, Takeo Yoshiie, Christopher J. Vavricka, Yoshinobu Kimura

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The Japanese cedar pollen allergen (Cry j1) and the mountain cedar pollen allergen (Jun a1) are glycosylated with plant complex type N-glycans bearing Lewis a epitope(s) (Galβ1-3[Fucα1-4]GlcNAc-). The biological significance of Lewis a type plant N-glycans and their effects on the human immune system remain to be elucidated. Since a substantial amount of such plant specific N-glycans are required to evaluate immunological activity, we have searched for good plant-glycan sources to characterize Lewis a epitope-containing plant N-glycans. In this study, we have found that three water plants, Elodea nuttallii, Egeria densa, and Ceratophyllum demersum, produce glycoproteins bearing Lewis a units. Structural analysis of the N-glycans revealed that almost all glycoproteins expressed in these three water plants predominantly carry plant complex type N-glycans including the Lewis a type, suggesting that these water plants are good sources for preparation of Lewis a type plant N-glycans in substantial amounts.

Original languageEnglish
Pages (from-to)50-57
Number of pages8
JournalCarbohydrate Research
Volume435
DOIs
Publication statusPublished - Nov 29 2016

Keywords

  • Lewis a epitope
  • Plant complex type N-Glycans
  • Water plants

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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