NDLI: The early history of the ubiquitin field

Content Provider	PubMed Central
Author	Varshavsky, Alexander
Abstract	This is a personal account of the early history of ubiquitin research, by one of its protagonists. The field of ubiquitin and regulated protein degradation was created in the 1980s, largely through the complementary discoveries by the laboratory of A. Hershko (Technion, Haifa, Israel) and by my laboratory, then at MIT (Cambridge, MA). I describe the elegant insights by Hershko and his colleagues that yielded the initial understanding of ubiquitin conjugation and ubiquitin-mediated proteolysis in cell extracts, including the identification of E1, E2, and E3 enzymes. These advances were followed by a set of interconnected discoveries in my laboratory that revealed the biology of the ubiquitin system, i.e., its necessity for the protein degradation in vivo, its specific physiological functions (in the cell cycle, DNA repair, protein synthesis, transcriptional regulation, and stress responses), the source of its selectivity (specific degradation signals in short-lived proteins), and its key mechanistic attributes, such as the polyubiquitin chain and the subunit selectivity of protein degradation. The above biological (function-based) insights produced the main discovery of the physiological regulation by intracellular protein degradation. These advances caused the enormous expansion of the ubiquitin field in the 1990s. Together with the initial discovery of ubiquitin-mediated proteolysis by Hershko and coworkers, our biological discoveries in the 1980s led to a radically changed understanding of the logic of intracellular circuits, as it became clear that the control through regulated protein degradation rivals, and often surpasses in significance, the classical regulation through transcription and translation.
Related Links	http://dx.doi.org/10.1110/ps.052012306
Ending Page	654
Page Count	8
Starting Page	647
File Format	PDF
ISSN	09618368
e-ISSN	1469896X
Journal	Protein Science : A Publication of the Protein Society
Issue Number	3
Volume Number	15
Language	English
Publisher	Cold Spring Harbor Laboratory Press
Publisher Date	2006-02-01
Access Restriction	Open
Rights Holder	Cold Spring Harbor Laboratory Press
Subject Keyword	Biochemistry Molecular Biology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Biology Biochemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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