[Parkinson's Disease Associated with Mutations in the LRRK2 Gene: Approaches to Therapy]
T S Usenko1,2,3, S N Pchelina1,2
1Konstantinov St. Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute, Gatchina, 188300 Russia.
Abstract:
Leucine-rich repeat kinase 2 (LRRK2) belongs to the subfamily of tyrosine kinase-like kinases, the main function of which is to catalyze the transfer of γ-phosphate from ATP to the substrate in the cell due to the kinase domains. The exact functions of LRRK2 in the cell remain unknown. It has been shown that mutations in the LRRK2 gene, which are the cause of the development of the most common autosomal dominant form of neurodegenerative disease, Parkinson's disease (PD), mainly lead to a pathological increase in kinase activity. This review describes the structure of LRRK2 and the functional activity of LRRK2 kinase in the form of a monomer, dimer, and even a tetramer and describes the effect of mutations in the LRRK2 gene on the structure and kinase activity of the LRRK2 enzyme. Understanding the structure and functions of LRRK2 opens up new prospects for using it as a target for PD therapy.
Insights
Leucine-rich repeat kinase 2 (LRRK2) is crucial in Parkinson's disease (PD) pathogenesis. Understanding LRRK2's structure and kinase activity, especially how mutations affect it, offers new therapeutic targets for PD.
Area of Science:
- Biochemistry
- Molecular Biology
- Neuroscience
Background:
- Leucine-rich repeat kinase 2 (LRRK2) is a tyrosine kinase-like kinase implicated in cellular signaling.
- Mutations in the LRRK2 gene are a primary cause of autosomal dominant Parkinson's disease (PD).
- The precise cellular functions of LRRK2 remain largely undetermined.
Purpose of the Study:
- To review the structural characteristics of LRRK2.
- To elucidate the functional activity of LRRK2 kinase in various oligomeric states (monomer, dimer, tetramer).
- To describe the impact of LRRK2 gene mutations on enzyme structure and kinase activity.
Main Methods:
- Literature review focusing on LRRK2 structure and function.
- Analysis of existing research on LRRK2 kinase activity.
- Examination of studies detailing LRRK2 mutations and their effects.
Main Results:
- LRRK2 exhibits kinase activity in monomeric, dimeric, and tetrameric forms.
- Mutations associated with Parkinson's disease often lead to increased LRRK2 kinase activity.
- Specific mutations alter the structural conformation and enzymatic function of LRRK2.
Conclusions:
- Detailed understanding of LRRK2 structure and function is essential for Parkinson's disease research.
- LRRK2 represents a promising therapeutic target for developing novel PD treatments.
- Further investigation into LRRK2's oligomerization states and mutation-driven alterations is warranted.
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