Many developments in immunology have occurred over the past 10 years that give us a better understanding of the immune system and its dysfunctions. Refined mapping of the major histocompatibility complex

Many developments in immunology have occurred over the past 10 years that give us a better understanding of the immune system and its dysfunctions. Refined mapping of the major histocompatibility complex MHC; elucidation of its gene structure and polymorphism, as well as the molecular basis of MHC restriction; the arrangement, expression, and regulation of immunoglobulins; definition of the structure of the T cell receptor and organization of its genes; and the characterization of soluble factors involved in cell/cell interactions and cloning of their genes are among the major...