秒速飞艇开奖记录

Histone acetyltransferase (HATs) proteins are involved in histone acetylation, or the addition of an acetyl group to lysine residues in the N-terminal tail and on the surface of the nucelosome core of histone proteins. They play a role in adjusting chromatin structure, leading to increased or decreased gene transcription levels. In general, histone acetylation is associated with increased gene expression.