Nadia Halim | Feb 20, 2000 | 6 min read
Methylation as a Cancer Switch Courtesy of Richard Roberts, New England BiolabsReaction model: Methyltransferase (white) is methylating cyclic carbon 5 of a cytosine nucleotide. The tenuous link between cancer and epigenetic changes, changes in gene expression without DNA mutations, has been strengthened by Joe Costello, assistant professor at the University of California, San Francisco, and colleagues (J.F. Costello et al., "Aberrant CpG-island methylation has non-random and tumour-type-specifi