Find more about p53 Signaling
The p53 transcription factor regulates multiple biological functions, including growth arrest, DNA repair, and apoptosis. This gene is continuously degraded in the cell under normal conditions. When external or cellular stress causes DNA damage, the genes ATM and ATR are activated and phosphorylate the cell cycle checkpoint proteins CHEK1 and CHEK2. During this process, p53 degradation is inhibited, and p53 protein accumulates in the nucleus. p53 is activated by posttranslational modifications such as acetylation or phosphorylation. Additional cofactors enhance or inhibit the activity of this important transcription factor. Genes targeted by p53 initiate multiple processes such as cell cycle arrest and apoptosis. A wide variety of cancers carry p53 mutations or other defects that dysregulate p53 and its cofactors, making this gene an important and highly-studied tumor suppressor. Analyzing the expression, regulation, and sequence of p53 signaling genes can help determine their relative importance to the biology of the cellular or disease processes under study. ...
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The p53 transcription factor regulates multiple biological functions, including growth arrest, DNA repair, and apoptosis. This gene is continuously degraded in the cell under normal conditions. When external or cellular stress causes DNA damage, the genes ATM and ATR are activated and phosphorylate the cell cycle checkpoint proteins CHEK1 and CHEK2. During this process, p53 degradation is inhibited, and p53 protein accumulates in the nucleus. p53 is activated by posttranslational modifications such as acetylation or phosphorylation. Additional cofactors enhance or inhibit the activity of this important transcription factor. Genes targeted by p53 initiate multiple processes such as cell cycle arrest and apoptosis. A wide variety of cancers carry p53 mutations or other defects that dysregulate p53 and its cofactors, making this gene an important and highly-studied tumor suppressor. Analyzing the expression, regulation, and sequence of p53 signaling genes can help determine their relative importance to the biology of the cellular or disease processes under study.
QIAGEN provides a broad range of assay technologies for p53 signaling research that enables analysis of gene expression and regulation, epigenetic modification, genotyping, and signal transduction pathway activation. Solutions optimized for p53 signaling studies include PCR array, miRNA, siRNA, mutation analysis, pathway reporter, chromatin IP, DNA methylation, and protein expression products.
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