Abstract:Transcription is regulated through a variety of different mechanisms. One facet of transcriptional regulation is epigenetics, which is the regulation of gene expression without altering the nucleotide sequence of the genome, but rather reversible modifications, e.g. CpG methylation. The CpG islands in tumor suppressor gene promoters are often hypermethylated, thus down regulating their expression. The p73 gene is a member of the p53 tumor suppressor family of proteins, and like p53, has a bifurcated promoter. … Show more
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