The Parkinson’s Disease Protein LRRK2 Interacts with the GARP Complex to Promote Retrograde Transport to the trans-Golgi Network | Zendy

Alexandra Beilina | Zendy; Luis BonetPonce | Zendy; Ravindran Kumaran | Zendy; Jennifer J. Kordich | Zendy; Morié Ishida | Zendy; Adamantios Mamais | Zendy; Alice Kaganovich | Zendy; Sara Sáez-Atiénzar | Zendy; David C. Gershlick | Zendy; Dorien A. Roosen | Zendy; Laura Pellegrini | Zendy; Vlad Malkov | Zendy; Matthew Fell | Zendy; Kirsten Harvey | Zendy; Juan S. Bonifacino | Zendy; Darren J. Moore | Zendy; Mark Cookson | Zendy

Open Access

The Parkinson’s Disease Protein LRRK2 Interacts with the GARP Complex to Promote Retrograde Transport to the trans-Golgi Network

Author(s) -

Alexandra Beilina,

Luis BonetPonce,

Ravindran Kumaran,

Jennifer J. Kordich,

Morié Ishida,

Adamantios Mamais,

Alice Kaganovich,

Sara Sáez-Atiénzar,

David C. Gershlick,

Dorien A. Roosen,

Laura Pellegrini,

Vlad Malkov,

Matthew Fell,

Kirsten Harvey,

Juan S. Bonifacino,

Darren J. Moore,

Mark Cookson

Publication year - 2020

Publication title -

cell reports

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 6.264

H-Index - 154

eISSN - 2639-1856

pISSN - 2211-1247

DOI - 10.1016/j.celrep.2020.107614

Subject(s) - lrrk2 , golgi apparatus , transport protein , parkinson's disease , axoplasmic transport , disease , microbiology and biotechnology , neuroscience , intracellular transport , chemistry , biology , medicine , pathology , endoplasmic reticulum , intracellular

SUMMARY Mutations in Leucine-rich repeat kinase 2 (LRRK2) cause Parkinson’s disease (PD). However, the precise function of LRRK2 remains unclear. We report an interaction between LRRK2 and VPS52, a subunit of the Golgi-associated retrograde protein (GARP) complex that identifies a function of LRRK2 in regulating membrane fusion at the trans -Golgi network (TGN). At the TGN, LRRK2 further interacts with the Golgi SNAREs VAMP4 and Syntaxin-6 and acts as a scaffolding platform that stabilizes the GARP-SNAREs complex formation. Therefore, LRRK2 influences both retrograde and post-Golgi trafficking pathways in a manner dependent on its GTP binding and kinase activity. This action is exaggerated by mutations associated with Parkinson’s disease and can be blocked by kinase inhibitors. Disruption of GARP sensitizes dopamine neurons to mutant LRRK2 toxicity in C. elegans , showing that these pathways are interlinked in vivo and suggesting a link in PD.

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