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Nobel Prizes and Laureates

Nobel Prizes and Laureates

The Nobel Prize in Chemistry 2004
Aaron Ciechanover, Avram Hershko, Irwin Rose

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Avram Hershko - Facts

Avram Hershko

Avram Hershko

Born: 31 December 1937, Karcag, Hungary

Affiliation at the time of the award: Technion - Israel Institute of Technology, Haifa, Israel

Prize motivation: "for the discovery of ubiquitin-mediated protein degradation"

Field: biochemistry

Prize share: 1/3

Work

An important process in our cells is the production of proteins. But proteins must also be broken down. At the beginning of the 1980s, Avram Hershko, Aaron Ciechanover and Irwin Rose showed that one protein, ubiquitin, has a special mission in this context. When it is time for a protein to be broken down, a ubiquitin molecule attaches itself to the protein. The ubiquitin molecule serves as a key that enters a proteasome, a protein complex that divides the protein into smaller pieces. These can be used in the construction of other substances in the cell.

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