covalent chromatin modification 2.309290e-03 histone modification 2.309290e-03 histone deacetylation 1.052000e-02 protein deacetylation 1.052000e-02 protein deacylation 1.052000e-02 polysaccharide metabolic process 1.170450e-02 chromatin silencing 3.040540e-02 histone H3 acetylation 4.100760e-02