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Structural Studies on Human Erythrocyte Glycoproteins
Open accessAbstract
Abstract Treatment of M- or N-active sialoglycopeptides, derived from human erythrocytes, with alkaline borohydride (0.1 m NaOH-0.4 m NaBH4, room temperature, 26 hours) released 25 to 30% of the carbohydrate as low molecular weight oligosaccharides. No difference was found in the composition of oligosaccharides obtained from M- or N-active erythrocytes. The most complex oligosaccharide (Component I) was a tetrasaccharide, N-acetylneuraminyl-(2 → 3)-β-d-galactopyranosyl-(1 → 3) [N-acetylneuraminyl-(2 → 6)]-d-N-acetylgalactosaminitol. In addition, the following compounds were identified: N-acetylneuraminyl-(2 → 3)-β-d-galactopyranosyl-(1 → 3)-d-N-acetylgalactosaminitol (Component II); N-acetylneuraminyl-(2 → 3)-β-d-galactitol (Component III); β-d-galactopyranosyl-(1 → 3)-d-N-acetylgalactosaminitol, together with free sialic acid, galactitol, N-acetylgalactosaminitol, 3-deoxy-d-glucitol, and the reduced Kuhn chromogen. It is concluded that the major, alkali-labile oligosaccharide of sialoglycopeptides is a tetrasaccharide and that other components are degradation products thereof.
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Cites
Colorimetric Method for Determination of Sugars and Related Substances
DuBois, M., Gilles, K. A., Hamilton, J. K., Rebers, P. A., & Smith, F. (1956) · Analytical Chemistry · doi:10.1021/ac60111a017 · Cited by 52,269
Cited by
The Lectins: Carbohydrate-Binding Proteins of Plants and Animals
Goldstein, I. J., & Hayes, C. E. (1978) · Advances in Carbohydrate Chemistry and Biochemistry · doi:10.1016/s0065-2318(08)60220-6 · Cited by 1,621
Deglycosylation of glycoproteins by trifluoromethanesulfonic acid
Edge, A. S. B., Faltynek, C. R., Hof, L., Reichert, L. E., & Weber, P. (1981) · Analytical Biochemistry · doi:10.1016/0003-2697(81)90168-8 · Cited by 719
Gahmberg, C. G., & Hakomori, S.-I. (1973) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(19)43774-5 · Cited by 697
Structure of the O-Glycosidically Linked Carbohydrate Units of Fetuin
Spiro, R. G., & Bhoyroo, V. D. (1974) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(20)79875-3 · Cited by 631
Isolation, Physicochemical Characterization, and Carbohydrate-Binding Specificity of Lectins
GOLDSTEIN, I. J., & PORETZ, R. D. (1986) · The Lectins · doi:10.1016/b978-0-12-449945-4.50007-5 · Cited by 622
Metadata
- Authors
- Thomas, D. B., & Winzler, R. J.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 1969-11
- Volume
- 244
- Issue
- 21
- Pages
- 5943-5946
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W1497259627
- Cited by
- 466
- References
- 1
- FWCI
- 4.87
- Type
- journal article
- Language
- en
- Open access
- hybrid
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