Avram Hershko

Avram Hershko

Infobox Scientist
name = Avram Hershko

image_size = 180px
birth_date = birth date|1937|12|31|df=yes
birth_place = Karcag, Kingdom of Hungary
nationality = Israel
field = Chemistry
work_places = Technion
alma_mater =
doctoral_advisor =
doctoral_students =
known_for = ubiquitin-mediated protein degradation
influences =
influenced =
prizes = Nobel Prize in Chemistry (2004)

Avram Hershko ( _he. אברהם הרשקו) (born 31 December 1937) is an Israeli biochemist and Nobel laureate in Chemistry for his discovery with Aaron Ciechanover and Irwin Rose, of ubiquitin-mediated protein degradation.


Born Herskó Ferenc in Karcag, Kingdom of Hungary, Hershko emigrated to Israel in 1950. Received his M.D. in 1965 and his Ph. D in 1969 from the Hebrew University-Hadassah Medical School, Jerusalem, Israel. He is currently a Distinguished Professor at the Rappaport Faculty of Medicine at the Technion in Haifa.

In 2000 he received the Albert Lasker Award for Basic Medical Research. Along with Aaron Ciechanover and Irwin Rose, he was awarded the 2004 Nobel Prize in Chemistry for the discovery of ubiquitin-mediated protein degradation. The ubiquitin-proteasome pathway has a critical role in maintaining the homeostasis of cells and is believed to be involved in the development and progression of diseases such as: cancer, muscular and neurological diseases, immune and inflammatory responses.

Honours and awards

*1987 - Weizmann Prize for Sciences (Israel)
*1994 - Israel Prize in Biochemistry
*1999 - Gairdner International Award Canada (with A. Varshavsky)
*2000 - Albert Lasker Award for Basic Medical Research (with A. Ciechanover and A. Varshavsky).
*2001 - Louisa Gross Horwitz Prize from Columbia University
*2001 - Wolf Prize in Medicine, Jerusalem
*2003 - Foreign Associate, National Academy of Sciences, USA
*2004 - Nobel Prize in Chemistry


* Hershko, A., Ciechanover, A., Heller, H., Haas, A.L., and Rose I.A. (1980) "Proposed role of ATP in protein breakdown: Conjugation of proteins with multiple chains of the polypeptide of ATP-dependent proteolysis". "Proc. Natl. Acad. Sci. USA" 77, 1783-1786.
* Hershko, A., Heller, H., Elias, S. and Ciechanover, A. (1983) Components of ubiquitin-protein ligase system: resolution, affinity purification and role in protein breakdown. J. Biol. Chem. 258, 8206-8214.
* Hershko, A., Leshinsky, E., Ganoth, D. and Heller, H. (1984) ATP-dependent degradation of ubiquitin-protein conjugates. Proc. Natl. Acad. Sci. USA 81, 1619-1623.
* Hershko, A., Heller, H., Eytan, E. and Reiss, Y. (1986) The protein substrate binding site of the ubiquitin-protein ligase system. J. Biol. Chem. 261, 11992-11999.
* Ganoth, D., Leshinsky, E., Eytan, E., and Hershko, A. (1988) A multicomponent system that degrades proteins conjugated to ubiquitin. Resolution of components and evidence for ATP-dependent complex formation. J. Biol. Chem. 263, 12412-1241.
* Sudakin, V., Ganoth, D., Dahan, A., Heller, H., Hershko, J., Luca, F.C., Ruderman, J.V. and Hershko, A. (1995). The cyclosome, a large complex containing cyclin-selective ubiquitin ligase activity, targets cyclins for destruction at the end of mitosis. Mol. Biol. Cell 6, 185-198.


External links

* [http://nobelprize.org/chemistry/laureates/2004/ Nobel citation]
* [http://www.technion.ac.il/%7Erapinst/hershko.html Website at the Technion]
* [http://www.crookedtimber.org/archives/002639.html "Hungarian" Nobel Prize winners] Crooked Timber
* [http://www.jewishvirtuallibrary.org/jsource/biography/Hershko.html Avram Hershko] Jewish Virtual Library
* [http://www.facs.org/education/gs2004/gs38hershko.pdf Ubiquitin-Mediated Protein Degradation: From the lab to the bedside] Dan Hersko
* [http://www.isracast.com/tech_news/101004_tech.htm Avram Hershko & Aaron Ciechanover, 2004 Nobel in Chemistry] - A web article
* [http://www.cumc.columbia.edu/horwitz/ The Official Site of Louisa Gross Horwitz Prize]

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