Enzymatic conversion of human blood-group-O erythrocytes into A 2  and A 1  cells by  -N-acetyl-D-galactosaminyl transferases of blood-group-A individuals.
D000017:ABO Blood-Group System; D000085:Acetates; D001665:Binding Sites; D001789:Blood Group Antigens; D002462:Cell Membrane; D000939:Epitopes; D004912:Erythrocytes; D005688:Galactosamine; D005753:Gastric Mucosa / Q000201:enzymology; D006384:Hemagglutination; D006602:Hexosyltransferases / Q000378:metabolism*; D006801:Humans; D037102:Lectins; D013045:Species Specificity; D013329:Structure-Activity Relationship; D013499:Surface Properties; D014316:Tritium; D014539:Uridine Diphosphate Sugars
D000017:ABO Blood-Group System; D000085:Acetates; D001789:Blood Group Antigens; D000939:Epitopes; D037102:Lectins; D014539:Uridine Diphosphate Sugars; D014316:Tritium; D005688:Galactosamine; D006602:Hexosyltransferases