Table 1.

All the documented mammalian histone variants from canonical histone H2B, H3 and H4 families to date are listed in the table. Alternative names are written in the brackets. There are a total of 14 H2B variants, 11 H3 variants and 1 H4 variant.

Core Histone (Canonical Histone)	Histone Variants
H2B	H2B.A
	H2B.B
	H2B.E
	H2B.F
	H2B.J
	H2B.K
	H2B.L (H2BP4/sub H2B)
	H2B.M
	H2B.N
	H2B.O
	H2B.Q
	H2B.W
	H2B.1 (TSH2B/hTSH2B/TH2B)
	H2B.2
H3	H3.1
	H3.2
	H3.3
	H3.4 (TSH3.4/H3.1t/H3T)
	H3.5
	H3.6
	H3.7
	H3.8
	H3.Y.1 (H3.Y)
	H3.Y.2 (H3.X)
	CENP-A (CENH3)
H4	H4G (H4.7)