Ubiquitous and tenacious methylation of the CpG site in codon 248 of the p53 gene may explain its frequent appearance as a mutational hot spot in human cancer.


Cytosine methylation at CpG dinucleotides is thought to cause more than one-third of all transition mutations responsible for human genetic diseases and cancer. We investigated the methylation status of the CpG dinucleotide at codon 248 in exon 7 of the p53 gene because this codon is a hot spot for inactivating mutations in the germ line and in most human… (More)


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