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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.
Entry Term(s)
ABH Blood Group
ABO Blood Group
ABO Factors
Blood Group H Type 1 Antigen
H Blood Group
H Blood Group System
Registry Numbers
0
NLM Classification #
WH 420
Public MeSH Note
76; was ABO FACTORS 1963-75
Online Note
use ABO BLOOD-GROUP SYSTEM to search ABO FACTORS 1966-75
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.