Novel carbohydrate structures in trout egg glycoprotein: Occurrence of a neuraminidase-resistant N-glycolylneuraminosyl-(2→3)-N-acetylgalactosamine linkage
| Autor: | Mariko Iwasaki, Go Matsumura, Sadako Inoue |
|---|---|
| Rok vydání: | 1981 |
| Předmět: |
Acetylgalactosamine
Trout Stereochemistry Biophysics Disaccharide Neuraminidase Galactosamine Biochemistry Mass Spectrometry N-Acetylgalactosamine Residue (chemistry) chemistry.chemical_compound Glycolipid Animals Molecular Biology Glycoproteins Ovum chemistry.chemical_classification biology Cell Biology Carbohydrate biology.organism_classification Carbohydrate Sequence chemistry biology.protein Female Neuraminic Acids Glycoprotein |
| Zdroj: | Biochemical and Biophysical Research Communications. 102:1295-1301 |
| ISSN: | 0006-291X |
| DOI: | 10.1016/s0006-291x(81)80152-0 |
| Popis: | Summary Oligosaccharides with a new type of core structure, GalNAcβ1→4 Galβl→4[NGNA2→3]GalNAcβ1→3Ga1β1→3Ga1NAco1, have been isolated from trout egg glycoprotein. The occurrence of N-glycolylneuraminic acid (NGNA) linked 2→3 to the internal Ga1NAc residue is not known in any other glycoproteins and glycolipids. This NGNA residue was found to show some anomalous nature such as resistance to neuraminidases and unusual chemical shift values of H-3 protons in NMR spectra. A new feature is also found in the asialooligosaccharide structure, Ga1NAcβl→4Galβ1→4Ga1NAc, linked β1→3 to the linkage region disaccharide, Ga1β1→3Ga1NAc. |
| Databáze: | OpenAIRE |
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