Doctor of Philosophy, University California, Berkeley, 1978.
Lecturer biochemistry Imperial College, London, 1982—1985. Senior staff scientist Medical Research Council Molecular Neurobiology Unit and Laboratory Molecular Biology, Cambridge, England, 1985—1991. Professor biological chemistry University California Davis Medical School, 1990—1998.
Biotechnology and pharmaceutical consultant, 1998—2002. Vice president, discovery research Amylin Pharmaceuticals Inc., San Diego, 2002—2008, chief science officer, since 2008.
Married Laurie Jeanne Blass, September 12, 1998.