An epitope is best defined as
A) the actual portion of an antigenic molecule that is recognised by a receptor.
B) an antigen which precipitates an immune response by inducing the production of antibodies or T-cell receptors.
C) any molecule which can be recognised by one of the specific molecules of the immune system.
D) the interacting protein in the complement cascade.
E) an immunogen.

Question

Quizplus · Accepted Answer

An epitope, also known as an antigenic determinant, is specifically the part of an antigen molecule that is bound by an antibody or a receptor on a T-cell. It is the precise portion of the antigen that is recognized and targeted by the immune response, distinguishing it from the broader concepts of antigens or immunogens.

An Epitope Is Best Defined as