The Nobel Prizes in Physics, Chemistry, Physiology or Medicine, and Literature are awarded by the King of Sweden during a ceremony in the Concert Hall of Stockholm. This event takes place on December 10 each year. At the same time the Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel is also presented. Simultaneously in Oslo, Norway, the Nobel Peace Prize is awarded.

Foreword
Preface
1991 ERWIN NEHERand BERT SAKMANN
Presentation by Sten GriUner
Biography of Erwin Neher
Ion Channels for Communication Between and Within Cells
Biography of Bert Sakmann
Elementary steps in Synaptic Transmission Revealed by Currents Through Single Ion Channels
1992 EDMOND H. FISCHER and EDWIN G. KREBS
Presentation by HansJ6rnvall
Biography of Edwin G. Krebs
Protein Phosphorylation and Cellular Regulation， I
Biography of Edmond H. Fischer
Protein Phosphorylation and Cellular Regulation， II
1993 RICHARDJ. ROBERTS and PHILLIP A. SHARP
Presentation by Bertil Daneholt
Biography of RichardJ. Roberts
An Amazing Distortion in DNA Induced by a Methyltransferase
Biography of Phillip A. Sharp
Split Genes and RNA Splicing
1994 ALFRED G.GILMAN and MARTIN RODBELL
Presentation by Bertil B.Fredholm
Biography of Alfred G.Gilman
G Groteins and Regualtion of Adenylyl Cyclase
Biography of Martin Rodbell
Signal Transduction:Evolution of an Idea
1995 EDWARD B.LEWIS,CHRISTIANE NUSSLEIN-VOLHARO and ERIC F.WIESCHAUS
Presentation by Bjorn Vennstrom
Biography of Edward B.Lewis
The Bithorax Complex:The First Fifty Years
Biography of Christiane Nusslein-Volhard
The Identification of Genes Controlling Development in Flies and Fishes
Biography of Eric Wieschaus
From Molecular Patterns to Morphogenesis:The Lessons from Drosophila