Structural organization of the carbohydrate moiety of human transcortin as determined by methylation analysis of the whole glycoprotein.

Methylation analysis of human transcortin showed that this glycoprotein contains N-glycosidically linked oligosaccharide chains of N-acetyllactosamine type, most of the chains being biantennary and others tri- and/or tetra-antennary. The carbohydrate chains of transcortin are also heterogeneous with respect to the content of fucose and the position of the glycosidic linkages.