@article{99d11e7a7675471bb762b09cc74f880e,
title = "A transactivation-deficient mouse model provides insights into Trp53 regulation and function",
abstract = "The gene Trp53 is among the most frequently mutated and studied genes in human cancer, but the mechanisms by which it suppresses tumour formation remain unclear. We generated mice with an allele encoding changes at Leu25 and Trp26, known to be essential for transcriptional transactivation and Mdm2 binding, to enable analyses of Trp53 structure and function in vivo. The mutant Trp53 was abundant, its level was not affected by DNA damage and it bound DNA constitutively; however, it showed defects in cell-cycle regulation and apoptosis. Both mutant and Trp53-null mouse embryonic fibroblasts (MEFs) were readily transformed by oncogenes, and the corresponding mice were prone to tumours. We conclude that the determining pathway for Trp53 tumour-suppressor function in mice requires the transactivation domain.",
author = "Jimenez, {Gretchen S.} and Monica Nister and Stommel, {Jayne M.} and Michelle Beeche and Barcarse, {Erin A.} and Zhang, {Xiao Qun} and Stephen O'Gorman and Wahl, {Geoffrey M.}",
note = "Funding Information: The ENCODE project (http://www.genome.gov/ENCODE/) is funded and managed by the National Human Genome Research Institute at the US National Institutes of Health. Funding Information: We thank C. Barlow for help with isolation of mouse thymocytes and advice on measuring apoptosis and tumorigenicity; and M. Vogt and M. Haas for helpful discussions regarding transformation assays. This work was supported by a postdoctoral fellowship from the NIH (G.S.J.), an NSF Graduate Fellowship (J.M.S.) and an ACS International Cancer Research Fellowship from the UICC (M.N.), and by grants from the NIH (G.M.W. and S.O.) and the G. Harold and Leila Y. Mathers Charitable Foundation (G.M.W.).",
year = "2000",
month = sep,
doi = "10.1038/79152",
language = "English (US)",
volume = "26",
pages = "37--43",
journal = "Nature Genetics",
issn = "1061-4036",
publisher = "Nature Publishing Group",
number = "1",
}