🔬 Discovery

DNA as hereditary material (Avery-MacLeod-McCarty)

ADN como material hereditario (principio transformante)

Date
1944 · confidence high
Place
Rockefeller Institute, New York, United States
Credited to
Oswald Avery, Colin MacLeod and Maclyn McCarty
People
👤 Colin Munro MacLeod1909–1972👤 Maclyn McCarty1911–2005👤 Oswald Avery1877–1955
Field
Life & health

What was discovered

They identified DNA, not protein, as the 'transforming principle' that converts harmless pneumococci into virulent ones (Griffith's transformation, 1928).

He never received the Nobel Prize; many continued to believe in proteins until 1952.

What it led to

  • molecular biology
  • the search for the structure of DNA
  • the Hershey-Chase experiment (1952)
🕸️ View in the graph

Built on

Made possible

📄 Original publication

STUDIES ON THE CHEMICAL NATURE OF THE SUBSTANCE INDUCING TRANSFORMATION OF PNEUMOCOCCAL TYPESOswald T. Avery, Colin M. MacLeod, Maclyn McCarty · Journal of Experimental Medicine · 1944

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