Title : RACK1 modulates polyglutamine-induced neurodegeneration by promoting ERK degradation in Drosophila.

Pub. Date : 2021 May

PMID : 33983927






5 Functional Relationships(s)
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Compound Name
Protein Name
Organism
1 RACK1 modulates polyglutamine-induced neurodegeneration by promoting ERK degradation in Drosophila. polyglutamine Receptor of activated protein kinase C 1 Drosophila melanogaster
2 Loss of the scaffold protein RACK1 alleviated cell death associated with the expression of polyQ tracts alone, as well as in models of Machado-Joseph disease (MJD) and Huntington"s disease (HD), without affecting proteostasis of polyQ proteins. polyglutamine Receptor of activated protein kinase C 1 Drosophila melanogaster
3 Loss of the scaffold protein RACK1 alleviated cell death associated with the expression of polyQ tracts alone, as well as in models of Machado-Joseph disease (MJD) and Huntington"s disease (HD), without affecting proteostasis of polyQ proteins. polyglutamine Receptor of activated protein kinase C 1 Drosophila melanogaster
4 A genome-wide RNAi screen for modifiers of this rack1 suppression phenotype revealed that knockdown of the E3 ubiquitin ligase, POE (Purity of essence), further suppressed polyQ-induced cell death, resulting in nearly wild-type looking eyes. polyglutamine Receptor of activated protein kinase C 1 Drosophila melanogaster
5 These results suggest that RACK1 plays a key role in polyQ pathogenesis by promoting POE-dependent degradation of ERK, and implicate RACK1/POE/ERK as potent drug targets for treatment of polyQ diseases. polyglutamine Receptor of activated protein kinase C 1 Drosophila melanogaster