Now, this process not only takes place after our translation took place, but it also actually takes place during the process of translation. So in most eukaryotic cells, when translation is still actually taking place, the first amino acid in the growing polypeptide chain, usually our methionine amino acid, is removed and replaced by our acetyl group. And this process is known as an acetylation. Now, an acetylation plays a crucial role in gene expression. Histones, those proteins that are involved in condensing our DNA into chromatids, can be meth or can be acetalylated, which reduces their ability to fold and opens up our DNA so that that DNA section can undergo the transcriptional process. Now, finally, the final process that we're going to discuss is lipidation.