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2014 ; 11
(4
): 738-50
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Heterogeneity of leucine-rich repeat kinase 2 mutations: genetics, mechanisms and
therapeutic implications
#MMPMID24957201
Rudenko IN
; Cookson MR
Neurotherapeutics
2014[Oct]; 11
(4
): 738-50
PMID24957201
show ga
Variation within and around the leucine-rich repeat kinase 2 (LRRK2) gene is
associated with familial and sporadic Parkinson's disease (PD). Here, we discuss
the prevalence of LRRK2 substitutions in different populations and their
association with PD, as well as molecular and cellular mechanisms of
pathologically relevant LRRK2 mutations. Kinase activation was proposed as a
universal molecular mechanism for all pathogenic LRRK2 mutations, but later
reports revealed heterogeneity in the effect of mutations on different activities
of LRRK2. One mutation (G2019S) increases kinase activity, whereas mutations in
the Ras of complex proteins (ROC)-C-terminus of ROC (COR) bidomain impair the
GTPase function of LRRK2. Some risk factor variants, including G2385R in the WD40
domain, actually decrease the kinase activity of LRRK2. We suggest a model where
LRRK2 mutations exert different molecular mechanisms but interfere with normal
cellular function of LRRK2 at different levels of the same downstream pathway.
Finally, we discuss the current state of therapeutic approaches for LRRK2-related
PD.
|*Mutation
[MESH]
|Animals
[MESH]
|Genetic Variation
[MESH]
|Humans
[MESH]
|Leucine-Rich Repeat Serine-Threonine Protein Kinase-2
[MESH]