Definition: The major human blood type system which depends on the presence or absence of two antigens A and B. Type O occurs when neither A nor B is present and AB when both are present. A and B are genetic factors that determine the presence of enzymes for the synthesis of certain glycoproteins mainly in the red cell membrane.
IM; coord with disease /blood (IM), not /immunol nor /genet; TN 230
Other names ABO Factors; ABH Blood Group; Systems, ABO Blood-Group; H Blood Groups; Factor, ABO; Blood-Group System, ABO; Blood Groups, ABH; Blood Group, ABH; ABO Blood-Group Systems; ABH Blood Groups; H Blood Group; System, ABO Blood-Group; Factors, ABO; Blood-Group Systems, ABO; Blood Groups, H; Blood Group, H; ABO Factor; ABO Blood Group System; H Blood Group System; Blood Group H Type 1 Antigen