John howard northrop biography

John Howard Northrop (July 5, 1891 – May 27, 1987) was an American biochemist who, with James Batcheller Sumner and Wendell Meredith Stanley..

John Howard Northrop

The Nobel Prize-winning American biological chemist John Howard Northrop (1891-1987) established that enzymes are proteins and also showed that a bacterial virus is a nucleic acid-protein complex.

On July 5, 1891, J.

H. Northrop was born in Yonkers, NY. He attended Columbia University, majoring in chemistry and earning a bachelor of science degree in 1912 and a masters degree in science in 1913.

John Howard Northrop was born in Yonkers, New York, on July 5th, 1891.

John Howard Northrop was an American biochemist who, with James Batcheller Sumner and Wendell Meredith Stanley, won the 1946 Nobel Prize in Chemistry.

John Howard Northrop (July 5, 1891 – May 27, 1987) was an American biochemist who, with James Batcheller Sumner and Wendell Meredith Stanley.

John Howard Northrop was an American biochemist who received (with James B. Sumner and Wendell M. Stanley) the Nobel Prize for Chemistry in 1946 for.

JOHN HOWARD NORTHROP, trained in chemistry and intro- duced to general physiology by Jacques Loeb, proved that the enzymes pepsin and trypsin are proteins.

He studied the nature of phosphorus in starch for his thesis research and received a doctoral degree in chemistry in 1915. Northrop accepted a position with the biologist Jacques Loeb at the Rockefeller Institute for Medical Research in New York City.

Early Research

In his early career, Northrop was concerned with the effect of environmental factors on the hereditary properties of fruit flies (Drosophila).

He began by growing the flies aseptically, without pathological microorganisms. It was probably the first time animals had been cultivated free of microorga