Jacques Monod

Academic

1910 – 1976

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Who was Jacques Monod?

Jacques Lucien Monod was a French biologist who was awarded a Nobel Prize in Physiology or Medicine in 1965, sharing it with François Jacob and Andre Lwoff "for their discoveries concerning genetic control of enzyme and virus synthesis".

Monod is famous for his work on the E. coli lac operon, which encodes proteins necessary for the transport and breakdown of the sugar lactose. From their own work and the work of others, he and Jacob came up with a model for how the levels of some proteins in a cell are controlled. In their model, the manufacture of proteins, such as the ones encoded within the lac operon, is prevented when a repressor, encoded by a regulatory gene, binds to its operator, a specific site on the DNA next to the genes encoding the proteins. It is now known that repressor bound to the operator physically blocks RNA polymerase from binding to the promoter, the site where transcription of the adjacent genes begins.

Study of the control of expression of genes in the lac operon provided the first example of a transcriptional regulation system. He also suggested the existence of mRNA molecules that link the information encoded in DNA and proteins.

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Born
Feb 9, 1910
Paris
Also known as
  • Jacques Lucien Monod
  • Jacques-Louis Monod
Religion
  • Atheism
Nationality
  • France
Profession
Education
  • University of Paris
Died
May 31, 1976
Paris
Resting place
Cimetière du Grand Jas

Submitted
on July 23, 2013

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