Krebs, Sir Hans Adolf

Krebs, Sir Hans Adolf (krĕbz, krĕps), 1900–1981, English biochemist, b. Germany, M.D. Univ. of Hamburg, 1925. He taught at Cambridge and at the Univ. of Sheffield and after 1954 was professor of biochemistry at Oxford. In 1939 he became an English citizen. He received the 1953 Nobel Prize in Physiology or Medicine, awarded jointly to him and to F. A. Lipmann, for his studies of intermediary metabolism. These studies included the elucidation of the cycle of chemical reactions called the citric acid, or Krebs, cycle, which has proved to be the major source of energy in living organisms.

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Krebs, Sir Hans Adolf

(born Aug. 25, 1900, Hildesheim, Ger.—died Nov. 22, 1981, Oxford, Eng.) German-born British biochemist. He fled Nazi Germany for England in 1933, where he taught at the Universities of Sheffield and Oxford. He was the first to describe the urea cycle (1932). He and Fritz Lipmann (1899–1986) received a 1953 Nobel Prize for their discovery in living organisms of the series of chemical reactions known as the tricarboxylic acid cycle (also called the citric acid cycle or Krebs cycle), a discovery of vital importance to a basic understanding of cell metabolism and molecular biology.