Dohmen RJ, et al. (1991)

Abstract

The N-end rule relates the in vivo half-life of a protein to the identity of its amino-terminal residue. Distinct versions of the N-end rule operate in all organisms examined, from mammals to bacteria. We show that UBC2(RAD6), one of at least seven ubiquitin-conjugating enzymes in the yeast Saccharomyces cerevisiae, is essential for multiubiquitination and degradation of the N-end rule substrates. We also show that UBC2 is physically associated with UBR1, the recognition component of the N-end rule pathway. These results indicate that some of the UBC2 functions, which include DNA repair, induced mutagenesis, sporulation, and regulation of retrotransposition, are mediated by protein degradation via the N-end rule pathway.

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Reference Type: Journal Article | Research Support, Non-U.S. Gov't | Research Support, U.S. Gov't, P.H.S.
Authors: Dohmen RJ, Madura K, Bartel B, Varshavsky A
Primary Lit For: UBR1 | RAD6 | UBR1-RAD6 ubiquitin ligase complex
Additional Lit For: RAD6-UBR2 ubiquitin ligase complex | MUB1-RAD6-UBR2 ubiquitin ligase complex
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Evidence ID	Analyze ID	Gene/Complex	Systematic Name/Complex Accession	Qualifier	Gene Ontology Term ID	Gene Ontology Term	Aspect	Annotation Extension	Evidence	Method	Source	Assigned On	Reference

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