Immunological recognition of antigenic determinants of proteins and peptides

The data available in literature and those obtained by the author about the structure of the antigenic determinants of proteins and peptides which are identified by antibodies and different populations of immunocompetent cells are reviewed. The problems on interaction of different cells in the immune response against proteins, presentation of the immunogenic complex for identification by T-lymphocytes, structures of the antigen-identifying receptor of T-cells are discussed.