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- W2049541444 abstract "Transcription factor Nkx2.5, essential for heart development, regulates cardiomyocyte-specific gene expression through combinatorial interactions with other cardiac-restricted (GATA4 and dHAND) or ubiquitous (p300) transcription regulators. Here we demonstrate that Nkx2.5 and p53 synergistically activate the promoter of the striated muscle stress responsive transcriptional cofactor Ankrd2, involved in coordination of proliferation and apoptosis during myogenic differentiation. Moreover, the p53 protein is able to interact with both wild type Nkx2.5 and its mutant ΔNkx2.5 (aa 1–198) found in patients with diverse cardiac malformations. Nkx2.5 interaction site of p53 maps to the C terminal region, while p53 binding site on Nkx2.5 lies outside its C terminus. In addition, overexpression of Nkx2.5 has a modulatory, promoter dependent effect on p53 transactivation, while the mutant significantly abolished p53 activity on the Mdm2, p21WAF1/CIP1 and Bax promoters. Their physical interaction contributes to the observed behavior in the case of the Mdm2 promoter. Our data provide a new evidence for the role of p53 in cardiac function through interaction with Nkx2.5." @default.
- W2049541444 created "2016-06-24" @default.
- W2049541444 creator A5030085336 @default.
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- W2049541444 creator A5074819261 @default.
- W2049541444 creator A5084480790 @default.
- W2049541444 date "2015-03-01" @default.
- W2049541444 modified "2023-09-27" @default.
- W2049541444 title "Cardiac transcription factor Nkx2.5 interacts with p53 and modulates its activity" @default.
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- W2049541444 doi "https://doi.org/10.1016/j.abb.2015.02.001" @default.
- W2049541444 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25677450" @default.
- W2049541444 hasPublicationYear "2015" @default.
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