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Assaying the Kinase Activity of LRRK2 in vitro
06:09

Assaying the Kinase Activity of LRRK2 in vitro

Published on: January 18, 2012

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Advances in elucidating the function of leucine-rich repeat protein kinase-2 in normal cells and Parkinson's disease

Matthew Taylor1, Dario R Alessi1

  • 1Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, UK.

Current Opinion in Cell Biology
|February 10, 2020
PubMed

Insights

Mutations in leucine-rich repeat kinase-2 (LRRK2) cause inherited Parkinson's disease. This review details LRRK2 misregulation, its binding partners, and its role in Parkinson's disease pathogenesis.

Area of Science:

  • Neuroscience
  • Genetics
  • Molecular Biology

Background:

  • Autosomal dominant mutations in leucine-rich repeat kinase-2 (LRRK2) are a significant cause of inherited Parkinson's disease.
  • LRRK2 inhibitors are currently in clinical trials for therapeutic efficacy.

Purpose of the Study:

  • To review the current understanding of LRRK2 misregulation in Parkinson's disease.
  • To explore the molecular mechanisms and cellular pathways affected by LRRK2 mutations.
  • To discuss the potential links between LRRK2 function and Parkinson's disease pathology.

Main Methods:

  • Review of existing literature on LRRK2 mutations and Parkinson's disease.
  • Analysis of LRRK2 binding interactions with cellular components (membrane, microtubules, 14-3-3).
  • Examination of upstream regulators (Rab29, VPS35) and downstream effectors (Rab proteins, RILPL1/2, JIP3/4).

Main Results:

  • Mutations hyperactivate LRRK2, affecting its pathway activity.
  • LRRK2 interacts with membranes, microtubules, and 14-3-3 proteins.
  • Phosphorylation of Rab proteins by LRRK2 leads to effector binding.

Conclusions:

  • Understanding LRRK2 misregulation is crucial for developing effective Parkinson's disease therapies.
  • LRRK2's role in ciliogenesis, endosomal-lysosomal system, and immune responses may contribute to Parkinson's disease.
  • Further research into LRRK2's interplay with alpha-synuclein and tau is warranted.
Keywords:
CiliogenesisLysosomal stressNeuroinflammationProtein kinaseRILPL1Rab GTPaseSignal transduction

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