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Sir Hans Adolf Krebs (August 25, 1900 – November 22, 1981) was a German, later British medical doctor and biochemist. Krebs is best known for his identification of the citric acid cycle, also known as the Krebs cycle, the key sequence of metabolic chemical reactions that produces energy in cells.

[edit] Life

He was born in Hildesheim, Germany, to Alma and Georg Krebs. His father, Georg, was an ear, nose, and throat surgeon. Hans went to school in Hildesheim and studied medicine at the University of Göttingen from 1918–1923. He gained his Ph.D. at the University of Hamburg in 1925, then studied chemistry in Berlin for one year, where he later became an assistant of Otto Warburg at the Kaiser Wilhelm Institute for Biology until 1930. Because of his Jewish heritage he was barred from practicing medicine in Germany and he immigrated to England in 1933. He was invited to Cambridge, where he worked in the biochemistry department under Sir Frederick Gowland Hopkins (1861–1947). Krebs became professor of biochemistry at the University of Sheffield in 1945. Krebs' area of interest was intermediary metabolism. He identified the urea cycle in 1932. In 1937, he identified the citric acid cycle, also known as the Krebs-cycle. He was awarded the Nobel Prize in Physiology or Medicine in 1953 for his work on the Krebs-cycle. He was elected Honorary Fellow of Girton College, Cambridge University in 1979. Krebs died in Oxford, England in 1981. His son, Sir John Krebs, is also a distinguished scientist.

[edit] Timeline

• 1900 Born in Germany
• 1918 Began medical school
• 1923 Graduated from medical school
• 1925 Graduated with Ph.D. from University of Hamburg
• 1932 Identification of Urea Cycle
• 1933 Emigration to the United Kingdom
• 1937 Identification of Citric Acid Cycle or "Krebs Cycle"
• 1945 Became a Professor at University of Sheffield
• 1953 Won the Nobel Prize in Medicine
• 1958 Knighted
• 1981 Died in the United Kingdom

[edit] External link

• Nobel Prize: Krebs

bg:Ханс Кребс

de:Hans Adolf Krebs es:Hans Adolf Krebs fr:Hans Adolf Krebs id:Hans Adolf Krebs it:Hans Adolf Krebs he:הנס אדולף קרבס sw:Hans Krebs nl:Hans Adolf Krebs ja:ハンス・クレブス pl:Hans Adolf Krebs pt:Hans Adolf Krebs ru:Кребс, Ханс Адольф sv:Hans Krebs (biokemist)