Superantigens are
A)body tissues that the immune system mistakes as foreign.
B)cell markers found in some member of a species but not in other members.
C)bacterial toxins that activate T-cells at a 100 times greater rate than other antigens.
D)those that evoke allergic reactions.

Question

Quizplus · Accepted Answer

Superantigens are bacterial toxins that activate T-cells at a much higher rate than regular antigens, leading to an excessive immune response and potential harm to the host organism. This is due to their ability to bind to T-cell receptors outside of the normal antigen-binding site and cross-linking many different T-cells with the same specificity, leading to massive cytokine release and inflammation.

Superantigens Are