Chemist no. 122 of 350 · Biochemistry

John Howard Northrop

1891-1987United StatesNobel Chemistry 1946

Crystallization of pepsin and enzymes

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The discovery, explained

John Howard Northrop: Crystals of Digestive Enzymes and the End of a Great Debate

How John Howard Northrop crystallised pepsin, trypsin and chymotrypsin, settled that enzymes are proteins and found zymogen activation. JAM, NET, GATE notes.

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Biography

John Howard Northrop: Crystallising the Machinery of Digestion

Life of John Howard Northrop, American biochemist who crystallised pepsin and trypsin and shared the 1946 Nobel Prize in Chemistry. Early life, career and legacy.

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Academic lineage

Documented doctoral, postdoctoral and teaching links. Dashed chips are teachers outside the 350 chemists listed here.

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