Abstract
In our previous paper (Kimura, Y., et al., Biosci. Biotechnol. Biochem., 67, 1852-1856, 2003), we found that a complex type N-glycans containing β1-3 galactose residue occurs on royal jelly glycoproteins. During structural analysis of minor components of royal jelly N-glycans, we found complex type N-glycans bearing both galactose and N-acetylgalactosamine residues. Detailed structural analysis of pyridylaminated oligosaccharide revealed that the newly found N-glycan had a complex type structure harboring a tumor marker (T-antigen) unit: Galβ1-3GalNAcβ1-4GlcNAcβ1- 2Manα1-6 (Galβ1-3GalNAcβ1-4GlcNAcβ1-2Manα1-3) Manα1-4GlcNAcβ1-4GlcNAc. To our knowledge, this may be the first report of the presence of the T-antigen unit in the N-glycan moiety of eucaryotic glycoproteins.
Original language | English |
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Pages (from-to) | 2583-2587 |
Number of pages | 5 |
Journal | Bioscience, Biotechnology and Biochemistry |
Volume | 70 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2006 |
Keywords
- Apis mellifera
- Insect N-glycan
- Royal jelly
- T-antigen
- Tumor marker
ASJC Scopus subject areas
- Biotechnology
- Analytical Chemistry
- Biochemistry
- Applied Microbiology and Biotechnology
- Molecular Biology
- Organic Chemistry