A prominent Croatian biologist and a member of the French Academy of Sciences.
Radman's specialty is DNA repair; in 1974 he discovered the SOS response. The SOS response is a global response to DNA damage in which the cell cycle is arrested and DNA repair and mutagenesis are induced. The system involves the RecA protein (Rad51 in eukaryotes). The RecA protein, stimulated by single-stranded DNA, is involved in the inactivation of the LexA repressor thereby inducing the response. It is an error-prone repair system. He is now a professor of cellular biology at the Faculté de Médecine - Necker, Université Paris V, Paris, France.
Radman is a co-founder of the Mediterranean Institute For Life Sciences. In 2011 Radman won the FEMS-Lwoff Award, given out by the Federation of European Microbiological Societies, for his research of DNA repair mechanism in Deinococcus radiodurans.