The human p53 protein isoforms are expressed in several cell lines and modulate p53 tumor suppressor activity, mainly through modulation of gene expression (1-4). Thus, identifying the pattern of p53 isoforms expression in cell lines is a key step for future studies of the p53 network (5). At the moment, the detection of p53 protein isoforms is based on the use of a panel of antibodies allowing their identification by comparing their molecular weights and their detection pattern by different antibodies (6). Here, classical protocols supplemented with technical know-how are described to detect p53 protein isoforms at protein level by Western blotting and immunoprecipitation. Furthermore, a simple method to study the impact of p53 protein isoforms on p53 transcriptional activity through luciferase reporter gene assays is provided.
|Title of host publication||p53 protocols|
|Editors||Sumitra Deb, Swati Palit Deb|
|Place of Publication||Totowa, N.J.|
|Number of pages||15|
|ISBN (Print)||9781627032353 |
|Publication status||Published - 2013|
|Name||Methods in Molecular Biology|