James Sumner shows that the urease enzyme is a protein

Historical Context Note

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In 1926 American chemist James Batcheller Sumner (19th November, 1887 - 12th August, 1955) proved that an enzyme is a protein by crystallizing and isolating the enzyme urease, despite doubts within the scientific community over whether his experiment would be successful. In 1946 he received the Nobel Prize for Chemistry.

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6482 James Sumner shows that the urease enzyme is a protein 2 Historical context notes are intended to give basic and preliminary information on a topic. In some cases they will be expanded into longer entries as the Literary Encyclopedia evolves.

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