Projects per year
Abstract
We previously reported that Parkinson’s disease (PD) kinase LRRK2 phosphorylates a subset of Rab GTPases on a conserved residue in their switch-II domains (Steger, Tonelli et al., 2016) (PMID: 26824392). Here, we systematically analyzed the Rab protein family and found 14 of them (Rab3A/B/C/D, Rab5A/B/C, Rab8A/B, Rab10, Rab12, Rab29, Rab35 and Rab43) to be specifically phosphorylated by LRRK2, with evidence for endogenous phosphorylation for ten of them (Rab3A/B/C/D, Rab8A/B, Rab10, Rab12, Rab35 and Rab43). Affinity enrichment mass spectrometry revealed that the primary ciliogenesis regulator, RILPL1 specifically interacts with the LRRK2-phosphorylated forms of Rab8A and Rab10, whereas RILPL2 binds to phosphorylated Rab8A, Rab10, and Rab12. Induction of primary cilia formation by serum starvation led to a two-fold reduction in ciliogenesis in fibroblasts derived from pathogenic LRRK2-R1441G knock-in mice. These results implicate LRRK2 in primary ciliogenesis and suggest that Rab-mediated protein transport and/or signaling defects at cilia may contribute to LRRK2-dependent
pathologies.
pathologies.
Original language | English |
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Article number | e31012 |
Pages (from-to) | 1-22 |
Number of pages | 22 |
Journal | eLife |
Volume | 6 |
DOIs | |
Publication status | Published - 10 Nov 2017 |
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Dive into the research topics of 'Systematic proteomic analysis of LRRK2-mediated Rab GTPase phosphorylation establishes a connection to ciliogenesis'. Together they form a unique fingerprint.Projects
- 1 Finished
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Towards a Unifying Theory of Parkinson's Disease - Investigation of the Biochemical and Genetic Role of Rab GTPases (joint with German Centre for Neurodegenerative Diseases)
Alessi, D. (Investigator) & Muqit, M. (Investigator)
17/10/16 → 16/10/18
Project: Research