Fig. 1
From: Regulatory Function of Histone Modifications in Controlling Rice Gene Expression and Plant Growth
Schematic representation of reversible modifications of histone H3K4, K9, and K27. Histone H3K9 acetylation and H3K4 methylation are markers for gene activation. Histone H3K9 acetylation/deacetylation is catalyzed by histone acetyltransferases (HAT) and deacetylases (HDAC) that has three groups (RPD3, HD2 and SIR2). H3K9 methylation is mediated by Su(var) 3-9 homologues (SUVH) , while that of histone H3K4 and H3K27 is suggested to be mediated by Tritorax homologues (TXH) and E(Z) homologues, respectively. Histone lysine demethylases LSD1 and jmjC proteins are suggested to be involved in the reversion of methylated H3K4, K9, and K27. Numerals in parentheses are numbers of genes found in rice genome.