DefinitionThis section has been translated automatically.
Alloantigens [from allogenes "foreign", "alien], antigens found only in some members of a species.
For example, injection of an "alloantigen" into an organism that does not express it triggers an immune response. An example of alloantigens are the blood group antigens (blood groups), which can trigger an immune response when they come into contact with the maternal immune system.
