Histone acetylation is an important posttranslational modification correlated with gene activation. In Arabidopsis thaliana the histone acetyltransferase (HAC) proteins of the CBP family are homologous to animal p300/CREB (cAMP-responsive element-binding proteins. which are important histone acetyltransferases participating in many physiological processes. including proliferation. https://www.markymarkscott.com/product-category/permanent-hair-color/