ATM-dependent phosphorylation of heterogeneous nuclear ribonucleoprotein K promotes p53 transcriptional activation in response to DNA damage.
ATM-dependent phosphorylation of heterogeneous nuclear ribonucleoprotein K promotes p53 transcriptional activation in response to DNA damage.
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DOI:
10.4161/cc.23592
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发表时间:
2013-02-15
期刊:
影响因子:
--
通讯作者:
Jackson SP
中科院分区:
文献类型:
--
作者:
Moumen A;Magill C;Dry KL;Jackson SP
Previous work has established that heterogeneous nuclear ribonucleoprotein K (hnRNP K) is stabilized in an ATM-dependent manner in response to DNA damage and acts as a cofactor for p53-mediated transcription. Here, we show that in response to DNA damage caused by ionizing radiation, hnRNP K is phosphorylated in an ATM-dependent manner. Furthermore, our data indicate that ATM-dependent hnRNP K phosphorylation is required for its stabilization and its function as a p53 transcriptional cofactor in response to DNA damage. These findings thereby establish hnRNP K as an ATM target and help define how ATM orchestrates p53-dependent transcriptional responses in response to genotoxic stress.
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