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LRRK2-phosphorylated Rab10 sequesters Myosin Va with RILPL2 during ciliogenesis blockade

Authors: Herschel S Dhekne; Izumi Yanatori; Edmundo G Vides; Yuriko Sobu; Federico Diez; Francesca Tonelli; Suzanne R Pfeffer;

LRRK2-phosphorylated Rab10 sequesters Myosin Va with RILPL2 during ciliogenesis blockade

Abstract

Activating mutations in LRRK2 kinase causes Parkinson’s disease. Pathogenic LRRK2 phosphorylates a subset of Rab GTPases and blocks ciliogenesis. Thus, defining novel phospho-Rab interacting partners is critical to our understanding of the molecular basis of LRRK2 pathogenesis. RILPL2 binds with strong preference to LRRK2-phosphorylated Rab8A and Rab10. RILPL2 is a binding partner of the motor protein and Rab effector, Myosin Va. We show here that the globular tail domain of Myosin Va also contains a high affinity binding site for LRRK2-phosphorylated Rab10. In the presence of pathogenic LRRK2, RILPL2 and MyoVa relocalize to the peri-centriolar region in a phosphoRab10-dependent manner. PhosphoRab10 retains Myosin Va over pericentriolar membranes as determined by fluorescence loss in photobleaching microscopy. Without pathogenic LRRK2, RILPL2 is not essential for ciliogenesis but RILPL2 over-expression blocks ciliogenesis in RPE cells independent of tau tubulin kinase recruitment to the mother centriole. These experiments show that LRRK2 generated-phosphoRab10 dramatically redistributes a significant fraction of Myosin Va and RILPL2 to the mother centriole in a manner that likely interferes with Myosin Va’s role in ciliogenesis.

Keywords

/dk/atira/pure/subjectarea/asjc/2300/2307, Myosin Type V, /dk/atira/pure/subjectarea/asjc/1100/1110, 610, Genetics and Molecular Biology (miscellaneous), Leucine-Rich Repeat Serine-Threonine Protein Kinase-2, Cell Line, name=Ecology, Humans, Toxicology and Mutagenesis, Cilia, name=Health, Phosphorylation, /dk/atira/pure/subjectarea/asjc/2300/2303, Research Articles, Adaptor Proteins, Signal Transducing, Binding Sites, /dk/atira/pure/subjectarea/asjc/1300/1301, Myosin Heavy Chains, name=Biochemistry, LRRK2, HEK293 Cells, A549 Cells, rab GTP-Binding Proteins, Primary Cilia, Parkinson’s disease, name=Plant Science, Rab GTPase, Protein Binding

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
37
Top 10%
Top 10%
Top 1%
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