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Curr Opin Genet Dev. 2000 Feb;10(1):54-64.

Proteolysis and the cell cycle: with this RING I do thee destroy.

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  • 1Programme in Molecular Biology and Cancer, Graduate Department of Molecular and Medical Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, University of Toronto, Toronto, M5G 1X5, M5S 1A8, Canada. tyers@mshri.on.ca.

Abstract

The ubiquitin system drives the cell division cycle by the timely destruction of numerous regulatory proteins. Remarkably, the two main activities that catalyze substrate ubiquitination in the cell cycle, the Skp1-Cdc53/cullin-F-box protein (SCF) complexes and the anaphase-promoting complex/cyclosome (APC/C), define a new superfamily of E3 ubiquitin ligases, all based on related cullin and RING-H2 finger protein subunits. The circuits that interconnect the SCF, APC/C and cyclin-dependent kinase activities form a master oscillator that coordinates the replication and segregation of the genome.

PMID:
10679394
[PubMed - indexed for MEDLINE]
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