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Garrison-Morton-Norman History of Medicine
SUMNER, James Batcheller (1887 – 1955)

SUMNER, James Batcheller (1887 – 1955)

1887 – 1955

1 entries in the GMN corpus.

Image source Unknown author Unknown author · nobelprize.org · Public domain

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1926 CE

#14025

The isolation and crystallization of the enzyme urease.

SUMNER, James Batcheller (1887 – 1955)
SUMNER, James Batcheller (1887 – 1955)

Sumner first isolated and crystallized an enzyme (urease) and proved that enzymes are proteins. One month after publication of the above paper Sumner reinforced his discovery by recrystalizing urease, publishing a fol…