Localisation of the Prosthetic Sugar Groups of Bovine Colostrum κ-Casein

Abstract
The study of glycopeptides obtained after enzymic digestions of bovine colostrum .kappa.-caseinoglycopeptide obtained 15 min after calving, demonstrated the presence of 2 prosthetic sugar groups linked to threonine residues, instead of only 1 and up to 10 in the case of bovine (normal) and human caseinoglycopeptides, respectively. The secondary structure of bovine .kappa.-caseinoglycopeptide was reinvestigated.