Open AccessStructure of the Asialyl Oligosaccharide Chains of ϰ‐Casein Isolated from Ovine Colostrum
Author(s) -
SOULIER Solange,
SARFATI Robert S.,
SZABÓ Ladislas
Publication year - 1980
Publication title -
european journal of biochemistry
Language(s) - English
Resource type - Journals
eISSN - 1432-1033
pISSN - 0014-2956
DOI - 10.1111/j.1432-1033.1980.tb04743.x
Subject(s) - tetrasaccharide , chemistry , oligosaccharide , colostrum , stereochemistry , moiety , glucosamine , unit (ring theory) , biochemistry , biology , mathematics , antibody , polysaccharide , immunology , mathematics education
Three oligosaccharide alditols, a di (44–63%), tetra (32–46%), and a pentasacchariditol (5–10%) have been isolated from desialylated caseinomacropeptide obtained from ϰ‐casein of ewe colostrum. The disacchariditol is 2‐acetam‐do‐2‐deoxy‐3‐ O ‐(β‐ D ‐galactopyranosyl)galactitol; in the tetrasaccharide this unit is substituted in position 6 of the galactosaminitol moiety by 2‐acetamido‐2‐deoxy‐4‐ O ‐(β‐ D ‐galactopyranosyl)‐β‐ D ‐glucopyranose, while the pentasacchariditol is derived from the tetrasaccharide by addition of a D ‐galactopyranosyl unit to position 3 of the galactopyranose unit substituting the glucosamine unit.