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ATR-mediated regulation of nuclear and cellular plasticity.


ABSTRACT: ATR (Ataxia Telangiectasia and Rad3-related) is a member of the Phosphatidylinositol 3-kinase-related kinases (PIKKs) family, amongst six other vertebrate proteins known so far. ATR is indispensable for cell survival and its essential role is in sensing DNA damage and initiating appropriate repair responses. In this review we highlight emerging and recent observations connecting ATR to alternative roles in controlling the nuclear envelope, nucleolus, centrosome and other organelles in response to both internal and external stress conditions. We propose that ATR functions control cell plasticity by sensing structural deformations of different cellular components, including DNA and initiating appropriate repair responses, most of which are yet to be understood completely.

SUBMITTER: Kidiyoor GR 

PROVIDER: S-EPMC4962764 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature

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ATR-mediated regulation of nuclear and cellular plasticity.

Kidiyoor Gururaj Rao GR   Kumar Amit A   Foiani Marco M  

DNA repair 20160516


ATR (Ataxia Telangiectasia and Rad3-related) is a member of the Phosphatidylinositol 3-kinase-related kinases (PIKKs) family, amongst six other vertebrate proteins known so far. ATR is indispensable for cell survival and its essential role is in sensing DNA damage and initiating appropriate repair responses. In this review we highlight emerging and recent observations connecting ATR to alternative roles in controlling the nuclear envelope, nucleolus, centrosome and other organelles in response t  ...[more]

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