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  • Title: The LRRK2 I2012T, G2019S and I2020T mutations are not common in patients with essential tremor.
    Author: Deng H, Le W, Davidson AL, Xie W, Jankovic J.
    Journal: Neurosci Lett; 2006 Oct 23; 407(2):97-100. PubMed ID: 16939701.
    Abstract:
    Several mutations in the leucine-rich repeat kinase 2 gene (LRRK2) have been identified both in familial and sporadic cases of Parkinson's disease (PD). G2019S, located at a kinase (MAPKKK) domain, is the most common mutation in the LRRK2 gene in PD, Two adjacent mutations (I2012T and I2020T) were mapped to the same domain suggesting shared pathogenic mechanism of these mutations. Since phenotypes of PD overlap with essential tremor (ET), we investigated LRRK2 G2019S, I2012T, and I2020T mutations in a cohort of 272 patients with ET. No mutations were found in our ET cohort and, therefore, we conclude that LRKK2 I2012T, G2019S and I2020T variants are rare causes of Caucasian ET.
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