[Mechanism determining the variability of the immunologic specificity spectrum of antibodies and other immunoglobulins (theory)].

An analysis of the theories of immunity-the germ line theory, the translocations and recombinations theory, the somatic mutation theory, and the reverse translation theory advanced earlier shows that their postulates afford no answer to any of the central questions of immunology, such as: 1) The origin of genetic information which codes the entire multimillion totality of immunologically different antibodies and antigen-recognizing receptors of the immunological system B and T cells. 2) The causes of sharp differences in both, the resolving power and mechanisms of recognition of antigenic determinant by antibodies and B cell receptors, on the one hand, and of macromolecular antigens as such by antigen-recognizing receptors of T cells, on the other 3) The essence of the mechanisms by means of which the T cell receptors recognize and distinguish the macro-molecular antigens as such. A new theory is advanced which in terms of the principle of cross stereocomplementarycity determining the regularities of mutual specific recognition by polynucleotides and polypeptides coded by them and also on the basis of some biophysical, virological phenomena explains the physico-chemical and genetic basis of immunological phenomena mentioned above.