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Ten new ATM alterations in Polish patients with ataxia-telangiectasia.

ABSTRACT: Inherited biallelic mutations of the ATM gene are responsible for the development of ataxia telangiectasia (AT). The objective of the present study was to conduct molecular analysis of the ATM gene in a cohort of 24 Polish patients with ataxia-telangiectasia with aim being to provide an updated mutational spectrum in Polish AT patients. As a result of molecular analysis, the status of recurrent mutation was confirmed and ten new ATM variants were detected. Application of MLPA analysis allowed the detection of large genomic deletion. Previously, this type of mutation had never been seen in our population. Finally, in silico analysis was carried out for newly detected ATM alterations. In addition, functional analysis was performed to evaluate the effects of intronic variants: c.3402+30_3402+32delATC.

SUBMITTER: Podralska MJ 

PROVIDER: S-EPMC4303220 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature

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Inherited biallelic mutations of the ATM gene are responsible for the development of ataxia telangiectasia (AT). The objective of the present study was to conduct molecular analysis of the ATM gene in a cohort of 24 Polish patients with ataxia-telangiectasia with aim being to provide an updated mutational spectrum in Polish AT patients. As a result of molecular analysis, the status of recurrent mutation was confirmed and ten new ATM variants were detected. Application of MLPA analysis allowed th  ...[more]

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