1930 ⟶ John Howard Northrop Shows Pepsin is a Protein

John Howard Northrop showed that the pepsin enzyme is a prot...
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Year
1836
1926
1929
1930

🥩 Schwann Isolates Pepsin, the First Animal Enzyme

Theodor Schwann discovered pepsin in extracts from the stomach lining; first isolation of an animal enzyme.⟶
Schwann Isolates Pepsin, the First Animal Enzyme (1836)
EnzymologyBiochemistryEnzymePepsinSchwannAnimal Biology19th Century
GermanyGermany

🧪 James B. Sumner Identifies Urease as a Protein

James B. Sumner showed that the urease enzyme is a protein.⟶
James B. Sumner Identifies Urease as a Protein (1926)
BiochemistryEnzymesProteinsJames B. SumnerCrystallizationEnzyme Catalysis20th Century Biology
United StatesUnited States

🧬 Phoebus Levene Discovers Deoxyribose in Nucleic Acids

Phoebus Levene discovered the sugar deoxyribose in nucleic acids.⟶
Phoebus Levene Discovers Deoxyribose in Nucleic Acids (1929)
BiologyBiochemistryNucleic AcidsDeoxyribosePhoebus LeveneMolecular BiologyGenetics20th Century
United StatesUnited States

🧪 Edward Doisy and Adolf Butenandt Independently Discover Estrone

Edward Doisy and Adolf Butenandt independently discovered estrone.⟶
Edward Doisy and Adolf Butenandt Independently Discover Estrone (1929)
ChemistryBiochemistryHormonesEstroneEndocrinologyEdward DoisyAdolf Butenandt20th CenturySteroid Chemistry
United StatesUnited StatesGermanyGermany

🧪 John Howard Northrop Shows Pepsin is a Protein

John Howard Northrop showed that the pepsin enzyme is a protein.⟶
John Howard Northrop Shows Pepsin is a Protein (1930)
BiologyBiochemistryEnzymesPepsinProteinsJohn Howard NorthropEnzyme Kinetics20th Century
United StatesUnited States