Antigen-specific T-cell receptors and their reactions with natural complexes formed by peptides with major histocompatibility complex proteins / Herman N. Eisen, Yuri Sykulev, Theodore J. Tsomides -- X-ray crystallography of antibodies / Eduardo A. Padlan -- Insight into antibody combining sites using nuclear magnetic resonance and spin label haptens / Harden M. McConnell, Maria Martinez-Yamout -- Computational biochemistry of antibodies and T-cell receptors / Jiri Novotny, Jürgen Bajorath -- Catalytic antibodies / Edward M. Driggers, Peter G. Schultz -- The nature of the antigen / Michael Sela, Israel Pecht -- Antibody binding sites / James S. Huston, Michael N. Margolies, Edgar Haber -- Maturation of the immune response / César Milstein, Michael S. Neuberger.