Diversity of the human erythrocyte membrane sialic acids in relation with blood groups

Tatiana Bulai(Centre National de la Recherche Scientifique), Daniela Bratosin(National Institute of Research and Development for Biological Sciences), Alexandre Pons(Centre National de la Recherche Scientifique), Jean Montreuil(Centre National de la Recherche Scientifique), Jean‐Pierre Zanetta(Centre National de la Recherche Scientifique)
FEBS Letters
December 19, 2002
Cited by 72Open Access
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Abstract

The composition of the human erythrocyte membrane (RBC) glycoprotein- and glycolipid-bound sialic acids of A, B, AB and O type donors was studied using a new method (Zanetta et al., Glycobiology 11 (2001) 663-676). In addition to Neu5Ac as the major compound, Kdn, Neu5,9Ac(2), Neu5,7Ac(2), Neu (de-N-acetylated-Neu5Ac), Neu5Ac8Me, Neu5Ac9Lt, Neu4,5Ac(2), Neu5,8Ac(2)9Lt and Neu5Ac8S were characterised. Among these different compounds, Neu5Ac8Me, Neu5Ac9Lt, Neu4,5Ac(2), Neu5,8Ac(2)9Lt and Neu5Ac8S have never been described and quantitatively determined before in human tissues or cells. Neu5Gc and its O-alkylated or O-acylated derivatives were not detected.


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