biography
| name: |
Northrop, John (Howard)
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| sex:
| male
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| lived:
| (1891–1987)
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| biography:
| Biochemist, born in Yonkers, New York, USA. He spent most of his career pursuing viral and enzyme research at the Rockefeller Institute (later university) (1924–61), with time also spent as professor of bacteriology at the University of California, Berkeley (1949–58). During the 1930s, he and his colleagues isolated the enzymes trypsin and chymotrypsin. In 1939 he was the first to isolate a bacterial virus, and in 1940 he crystallized diphtheria antitoxin. He shared the Nobel Prize for Chemistry in 1946. |
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