The N-terminal region of Nurr1 (a.a 1-31) is essential for its efficient degradation by the ubiquitin proteasome pathway
Entity
UAM. Departamento de BioquímicaPublisher
Public Library of ScienceDate
2013-02-07Citation
10.1371/journal.pone.0055999
Plos One 8.2 (2013): e55999
ISSN
1932-6203 (online)DOI
10.1371/journal.pone.0055999Funded by
This work was supported by grants from MINECO SAF-2011-22643, Fundación Mutua Madrileña, Comunidad de Madrid P2010_BMD-2331 & Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas to JGCProject
Comunidad de Madrid. S2010/BMD-2331/NEURODEGMODELSSubjects
Cell Line; Mutation; Proteasome Endopeptidase Complex; Proteolysis; Ubiquitin; MedicinaRights
© 2013 Alvarez-Castelao et al.Abstract
NURR1/NR4A2 is an orphan nuclear receptor that is critical for the development and maintenance of mesencephalic dopaminergic neurons and regulates transcription of genes involved in the function of dopaminergic neurons directly via specific NGFI-B response elements (NBRE).and substantial data support a possible role of Nurr1 in the pathogenesis of Parkinson's disease (PD). Here we show that Nurr1 is degraded by the ubiquitin-proteasome pathway and determined that N-terminal region (a.a 1-31) of Nurr1 is essential for an efficient targeting of Nurr1 to degradation in the cell. Nurr1 Δ1-31 has a much longer half-life, and as a consequence its steady-state protein levels were higher, than full-length Nurr1 in the cell. Nurr1 Δ1-31 was as potent as Nurr1 full length in transcriptional luciferase reporter assays after normalization with the corresponding steady-state protein expression levels, either in trans-activation of NBRE or trans-repression of iNOS (inducible NO synthase) reporters. These results suggest that Nurr1 Δ1-31, because of longer persistence in the cell, can be a good candidate for gene and cell therapies in the treatment of PD
Files in this item
Google Scholar:Alvarez-Castelao, Beatriz
-
Losada, Fernando
-
Ahicart, Patrícia
-
Castaño, José G.
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.
-
Epitope mapping of antibodies to alpha-synuclein in LRRK2 mutation carriers, idiopathic parkinson disease patients, and healthy controls
Alvarez-Castelao, Beatriz; Gorostidi, Ana; Ruíz-Martínez, Javier; De Munaín, Adolfo López; Castaño, José G.
2014-07-15