James B. Sumner

✶November 19, 1887

†August 12, 1955

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About their life

James Batcheller Sumner was an American biochemist. He discovered that enzymes can be crystallized, for which he shared the Nobel Prize in Chemistry in 1946 with John Howard Northrop and Wendell Meredith Stanley. He was also the first to prove that enzymes are proteins.

American chemist

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Biography from the article James B. Sumner on the English Wikipedia, available under CC BY-SA 4.0.