This is the definition of epigenome I found – ‘The epigenome is made up of chemical compounds and proteins that can attach to DNA and direct such actions as turning genes on or off’
What is responsible for creating the chemical compounds and proteins that are apart of the epigenome?
I remember proteins are created from the DNA.
In: Biology
The central dogma is that DNA is transcribed to mRNA and mRNA is translated to proteins. And you have proteins that do parts of the transcribing and translating and everything else in the cell. It’s more involved than that, because each step is regulated by a lot of different elements.
But on the whole, proteins are the main actors in the cell. Proteins outside the cell will detect an issue and transmit that information through the actions of other proteins. And they’ll tack on or edit chemical compounds, not just on DNA, but on other proteins too.
DNA is wound around proteins called histones and these histones will assemble differently depending on their specific sequence, either blocking or enhancing access to genes.
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