Robert Joseph Lefkowitz is an American physician and biochemist. He is best known for his discoveries that reveal the inner workings of an important family of G protein-coupled receptors, for which he was awarded the 2012 Nobel Prize for Chemistry with Brian Kobilka. He is currently an Investigator with the Howard Hughes Medical Institute as well as a James B. Duke Professor of Medicine and Professor of Biochemistry and Chemistry at Duke University. The Nobel Prize in Chemistry 2012, announced October 10, 2012. Robert J. Lefkowitz and Brian Kobilka, “for studies of G-protein-coupled receptors”. Robert J. Lefkowitz: born 1943, New York, NY, USA. Brian Kobilka: born 1955, Little Falls, MN, USA. Wiki link Wiki link Data: the Nobel Foundation (CC0).