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Protein neddylation: beyond cullin-RING ligases.


ABSTRACT: NEDD8 (neural precursor cell expressed developmentally downregulated protein 8) is a ubiquitin-like protein that activates the largest ubiquitin E3 ligase family, the cullin-RING ligases. Many non-cullin neddylation targets have been proposed in recent years. However, overexpression of exogenous NEDD8 can trigger NEDD8 conjugation through the ubiquitylation machinery, which makes validating potential NEDD8 targets challenging. Here, we re-evaluate studies of non-cullin targets of NEDD8 in light of the current understanding of the neddylation pathway, and suggest criteria for identifying genuine neddylation substrates under homeostatic conditions. We describe the biological processes that might be regulated by non-cullin neddylation, and the utility of neddylation inhibitors for research and as potential therapies. Understanding the biological significance of non-cullin neddylation is an exciting research prospect primed to reveal fundamental insights.

SUBMITTER: Enchev RI 

PROVIDER: S-EPMC5131867 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature

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Protein neddylation: beyond cullin-RING ligases.

Enchev Radoslav I RI   Schulman Brenda A BA   Peter Matthias M  

Nature reviews. Molecular cell biology 20150101 1


NEDD8 (neural precursor cell expressed developmentally downregulated protein 8) is a ubiquitin-like protein that activates the largest ubiquitin E3 ligase family, the cullin-RING ligases. Many non-cullin neddylation targets have been proposed in recent years. However, overexpression of exogenous NEDD8 can trigger NEDD8 conjugation through the ubiquitylation machinery, which makes validating potential NEDD8 targets challenging. Here, we re-evaluate studies of non-cullin targets of NEDD8 in light  ...[more]

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