First Author | Vilborg A | Year | 2009 |
Journal | Proc Natl Acad Sci U S A | Volume | 106 |
Issue | 37 | Pages | 15756-61 |
PubMed ID | 19805223 | Mgi Jnum | J:153246 |
Mgi Id | MGI:4361785 | Doi | 10.1073/pnas.0900862106 |
Citation | Vilborg A, et al. (2009) The p53 target Wig-1 regulates p53 mRNA stability through an AU-rich element. Proc Natl Acad Sci U S A 106(37):15756-61 |
abstractText | The p53 target gene Wig-1 encodes a double-stranded-RNA-binding zinc finger protein. We show here that Wig-1 binds to p53 mRNA and stabilizes it through an AU-rich element (ARE) in the 3' UTR of the p53 mRNA. This effect is mirrored by enhanced p53 protein levels in both unstressed cells and cells exposed to p53-activating stress agents. Thus, the p53 target Wig-1 is a previously undescribed ARE-regulating protein that acts as a positive feedback regulator of p53, with implications both for the steady-state levels of p53 and for the p53 stress response. Our data reveal a previously undescribed link between the tumor suppressor p53 and posttranscriptional gene regulation via AREs in mRNA. |