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Chapter 8: Q21P. (page 243)

Draw the structure of the O-type oligosaccharide (the H antigen, described in Table 8-1).

Short Answer

Expert verified

H antigen consists of L-fucose, galactose, N-acetylglucosamine. It is the precursor for antigens A and B.

Step by step solution

01

H antigen

H-antigen is present in the O blood group and also acts as a precursor molecule for antigens A and B. L-fucose is combined with galactose by with α (1→2) Linkage. Galactose forms the linkage with N-acetyl glucosamine by β (1→4) Linkage. N-acetyl glucosamine is linked with another galactose sugar by β (1→3).

02

O-type oligosaccharide

Oligosaccharides determine the type of blood group of one person.

L-fucose, galactose, and N-acetylglucosamine combined together and form H antigen.

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