Structures of sugar chains of water-soluble glycoproteins in developing castor bean cotyledons.

Yoshinobu Kimura, Hiroshi Suehisa, Osamu Yamaguchi, Shuhei Nakajima, Shigeaki Takagi

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The structures of sugar chains from the water-soluble glycoproteins in developing castor beans have been identified. The structural analyses were done by a fluorescence method combined with exoglycosidase digestions and 1H-NMR spectroscopy. The identified structures fell into two categories; one was an oligomannose-type, the other xylomannose-type or xylose-containing type. Among these oligosaccharides, Man3Fuc1Xyl1GlcNAc2 (M3FX; 38%) and Man6GlcNAc2 (M6B; 22%) were the major structures. The higher mannose-content oligosaccharides (Man8-7GlcNAc2) were only 4.1%, and the further-modified structures (GNM3FX, M2FX) than M3FX were 22% of the total.

Original languageEnglish
Pages (from-to)3259-3267
Number of pages9
JournalAgricultural and Biological Chemistry
Issue number12
Publication statusPublished - Dec 1990


ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)

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