Not all genes are active at all times. DNA methylation is one of several epigenetic mechanisms that cells use to control gene expression. This straightforward experiment demonstrated that it was ...

Methylation turns genes on and off in plants by adding chemical tags to segments of DNA; this tagging is guided by RNA molecules. With Matsumura, plant pathologist, Chikara Masuta, from Hokkaido ...

To find out what role proteins played in the conversion process, the researchers engineered tomato plants to turn their ...

Whatever the mechanisms, it seems that active demethylation can play a role in a neuron’s return to basal gene expression after a learning event 4. Figure 1 | Proposed mechanism of DNA methylation and ...