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Life and destruction: ubiquitin-mediated proteolysis in aging and longevity

The ubiquitin/proteasome system (UPS) regulates the turnover of improperly folded and damaged proteins to maintain protein homeostasis (proteostasis), cellular function, and viability. It is commonly thought that an age-related impairment of the UPS affects general proteostasis networks, which cause...

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Detalles Bibliográficos
Autor principal: Hoppe, Thorsten
Formato: Texto
Lenguaje:English
Publicado: Faculty of 1000 Ltd 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2998811/
https://www.ncbi.nlm.nih.gov/pubmed/21151840
http://dx.doi.org/10.3410/B2-79
Descripción
Sumario:The ubiquitin/proteasome system (UPS) regulates the turnover of improperly folded and damaged proteins to maintain protein homeostasis (proteostasis), cellular function, and viability. It is commonly thought that an age-related impairment of the UPS affects general proteostasis networks, which causes enhanced protein aggregation and contributes to normal aging. Recent studies identified the existence of ubiquitin-dependent degradation pathways that specifically control lifespan regulators, suggesting additional roles for ubiquitylation in aging and longevity.