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CDKN2A

The role of DNMT3B in the co-incidence of methyltransferase and tumor suppressor expression in malignancies

Epigenetics is the process of heritable change in gene activity despite alteration of the hosts DNA sequence, essentially causing a change in a phenotype without a change in the genotype of a host. To change the gene sequence without interfering with the DNA is accomplished by histone and DNA methylation.  Gene silencing in DNA methylation is carried out by DNA methyltransferases 1, 2 and 3a/b (DNMT1, DNMT2, DNMT3A/B). On a broad level, DNMT’s methylate the fifth carbon of cytosine residues in DNA within CG dinucleotides.

The role of DNMT3A in development

Epigenetics is the study of heritable change in gene activity despite alteration of the hosts DNA sequence.  Change in gene activity done independently of the DNA sequence is achieved by way of histone and DNA methylation.  Gene silencing in DNA methylation is carried out by DNA methyltransferases 1, 2 and 3a/b (DNMT1, DNMT2, DNMT3A/B). On a broad level, DNMTs methylate the fifth carbon of cytosine residues in DNA within CG dinucleotides.