Urease, the first crystalline enzyme and the proof that enzymes are proteins: the work of James B. Sumner.
Robert D
RD
Simoni
Robert H
RH
Hill
Martha
M
Vaughan
D003460:Crystallization / Q000266:history; D049673:History, 20th Century; D010206:Papain / Q000266:history / Q000378:metabolism; D010434:Pepsin A / Q000266:history / Q000378:metabolism; D014481:United States; D014510:Urease / Q000737:chemistry / Q000266:history*
D010206:Papain; D010434:Pepsin A; D014510:Urease