Glycophorin carbohydrate structure

Carbohydrate Structure and Amino Acid-Sequence Data for Glycophorin A,... 

The results concerning the N-terminal structures of glycophorins A" and A were based on the labels that were placed on the crucial, N-terminal amino group, and they clearly showed that the amino acid residues at position S may play only a minor, if any, role in determining the structure of the MN blood-group determinants. The carbohydrate residues appear... 

Primary structure of glycophorin A. There are 15 O-linked and 1 N-linked carbohydrates attached to the protein. [Adapted from L. W. Stryer, Biochemistry, 3rd ed. W. H. Freeman, New York, 1995.]... 

H. Krotkiewski, E. Lisowska, G. Nilsson, G. Gronberg, and B. Nilsson, An improved approach to the analysis of the structure of small oligosaccharides from human glycophorin A, Carbohydr. Res., 239 (1993) 35-50. 

Within this membrane structure sit protein molecules, in about equal weight to the lipids, and these cannot be readily removed because they are anchored by ten or twenty hydrophobic amino acids.For example, a red blood cell membrane contains largely glycophorin molecules which have 131 amino acid residues and about 100 saccharide residues arranged as 16 short carbohydrate chains about 1 nm long. ... 

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