Abstract
Four components of ovomucoid were digested exhaustively and four kinds of glycopeptide corresponding to the four components were separated by gel filtration. Each glycopeptide was shown to be homogenious by paper chromatography and paper electrophoresis. Molar ratios of carbohydrate components of these glycopeptides varied to some extent but the amino acid compositions of thses glycopeptides were essentially identical with each other with the exception of alanine. Aspartic acid and threonie were predominant amino acids in the all glycopeptides. It is most likely that the modes of linkages between polysaharide and protein in individual ovomucoid I, II, III and IV are essentially the same, and that the c arbohydrate moiety is linked to the protein via asparaginyl residue or the hydroxyl group of threonine, although the possibility of the linkages to glutamine and serine can not be excluded.
