Marshall Warren Nirenberg

Marshall Warren Nirenberg (April 10, 1927 – January 15, 2010) was an American biochemist and geneticist. He shared a Nobel Prize in Physiology or Medicine in 1968 with Har Gobind Khorana and Robert W. Holley for "breaking the genetic code" and describing how it operates in protein synthesis. In the same year, together with Har Gobind Khorana, he was awarded the Louisa Gross Horwitz Prize from Columbia University.

Biography Nirenberg was born in New York City to a Jewish family, the son of Minerva (Bykowsky) and Harry Edward Nirenberg, a shirtmaker. His dissertation for the Master's thesis was an ecological and taxonomic study of caddis flies (Trichoptera). He received his PhD in biochemistry from the University of Michigan, Ann Arbor in 1957, studying hexose uptake in tumor cells with his advisor James F. Hogg.

He began his postdoctoral work at the National Institutes of Health (NIH) in 1957 as a fellow of the American Cancer Society in what was then called the National Institute of Arthritis and Metabolic Diseases. In 1959 he became a research biochemist at the NIH and began to study the steps that relate DNA, RNA and protein. Nirenberg's groundbreaking experiments advanced him to become the head of the Section of Biochemical Genetics in 1962 in the National Heart Institute (now the National Heart, Lung, and Blood Institute), where he remained a laboratory chief until his death. Fellow laboratory chiefs included Ernst Freese and Daniel Carleton Gajdusek. He was married in 1961 to Perola Zaltzman, a chemist from the University of Brazil, Rio de Janeiro, who also worked at NIH and died in 2001. Nirenberg married Myrna Weissman, PhD, Professor of Epidemiology and Psychiatry at Columbia University College of Physicians and Surgeons in 2005. He had four stepchildren: Susan Weissman of Evanston, Illinois, Judith Weissman of New York, New York, Sharon Weissman of New Haven, Connecticut, and Jonathan Weissman of San Francisco, California. He was also survived by his sister, Joan Nirenberg Geiger of Dallas, Texas, several nieces and a nephew.

Nirenberg was awarded the National Medal of Science in 1964 and the National Medal of Honor in 1968 by President Lyndon B. Johnson. In 1981, Nirenberg became a founding member of the World Cultural Council. In 1986, Nirenberg's achievements and contributions to the field of biochemistry genetics was recognized at an event honoring Maimonides and Menachem M. Schneerson, in the nation's capital, hosted by Bob Dole and Joe Biden. He was elected to the American Philosophical Society in 2001. He died on January 15, 2010, from cancer after several months of illness.

In August 1961, at the International Congress of Biochemistry in Moscow, Nirenberg presented a paper to a small group of scientists, reporting the decoding of the first codon of the genetic code. Matthew Meselson, who was in the audience, spontaneously hugged Nirenberg at the end of the talk and then told Francis Crick about Nirenberg's result. Crick invited Nirenberg to repeat his performance the next day in a talk to a much larger audience. Speaking before the assembled congress of more than a thousand people, Nirenberg electrified the scientific community.

Nirenberg's later research focused on neuroscience, neural development, and the homeobox genes.