Hamilton Smith is a U.S. microbiologist born Aug. 23, 1931, New York, N.Y. Smith received an A.B. degree in mathematics at the University of California, Berkeley in 1952 and the M.D. degree from Johns Hopkins University in 1956. After six years of clinical work in medicine (1956-1962), he carried out research on Salmonella phage P22 lysogeny at the University of Michigan, Ann Arbor (1962-1967). In 1967, he joined the Microbiology Department at Johns Hopkins.
In 1968, he discovered the first TypeII restriction enzyme (HindII) and determined the sequence of its cleavage site. In, 1978 he was a co-recipient (with D. Nathans and W. Arber) of the Nobel in Medicine for this discovery.
He is currently the Scientific Director Synthetic Biology and Bioenergy Distinguished Professor at the J. Craig Venture Institute in Rockville, Maryland.