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Multiplex ligation-dependent probe amplification (MLPA) analysis is an effective tool for the detection of novel intragenic PLA2G6 mutations: Implications for molecular diagnosis

By Danielle Crompton, Pauline K Rehal, Lesley MacPherson, Kathleen Foster, Peter Lunt, Imelda Hughes, Angela F Brady, Michael G Pike, Susanna De Gressi, Neil V Morgan, Carol Hardy, Matthew Smith, Fiona McDonald, Eamonn R Maher and Manju A Kurian


Phospholipase associated neurodegeneration (PLAN) comprises a heterogeneous group of autosomal recessive neurological disorders caused by mutations in the PLA2G6 gene. Direct gene sequencing detects 85% mutations in infantile neuroaxonal dystrophy. We report the novel use of multiplex ligation-dependent probe amplification (MLPA) analysis to detect novel PLA2G6 duplications and deletions. The identification of such copy number variants (CNVs) expands the PLAN mutation spectrum and may account for up to 12.5% of PLA2G6 mutations. MLPA should thus be employed to detect CNVs of PLA2G6 in patients who show clinical features of PLAN but in whom both disease-causing mutations cannot be identified on routine sequencin

Topics: R Medicine (General)
Year: 2010
DOI identifier: 10.1016/j.ymgme.2010.02.009
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