
The antigenic specificity of the antigen is determined by antigenic determinants or epitopes. What is an Epitope? The immunologically active region of an immunogen that binds to antigen-specific membrane receptors on lymphocytes or secreted antibodies…

Antigens are molecules that can be recognized by the immunoglobulin receptor of B cells or the T-cell receptor when complexed with the major histocompatibility complex (MHC). The term antigen is a shortened form of the…