Table 1.

Histone acetylation. Shown are all Histones identified. Given is the tentative name, the ATG number, the identification (x) in cytoplasm (CYT), nucleus (NUC) or nucleolus (NOC) as well as the number of replicas in which acetylation was observed. In case that acetylation (A) or phosphorylation (P) is observed, the last column gives the number and the modified amino acid in the 3 letter code. Numbers in bold show detection in ¹⁶O and ¹⁸O samples.

		Localization			Modification
Protein function	ATG	CYT	NUC	NOC	CYT	NUC	NOC		Modified AA
Histone superfamily protein	AT1G07660		X	X		4	1	A	Lys-32/92
Histone B2	AT5G22880	X	X	X		3		A	Lys-28/67/93
Histone deacetylase 2B	AT5G03740		X	X		1	2	A	Lys-123/287
Histone deacetylase HDT4	AT2G27840			X
Histone deacetylase HD2A	AT3G44750		X	X		2	1	A	Lys-12
Histone superfamily protein	AT1G01370		X	X
Histone H2A 6	AT5G59870		X	X
Histone H2A 7	AT5G27670		X	X		2	1	A	Lys-129
Histone acetyltransferase	AT5G56740	X	X
Histone superfamily protein	AT3G09480		X	X
Histone superfamily protein	AT1G21970		X
Histone deacetylase 2B	AT5G22650	X	X	X		1		A	Lys-15
Histone superfamily protein	AT1G09200		X			1		P	Thr-108