Histone H2B combines with Histone H2A to form the H2A-H2B heterodimer. Two H2A/H2B heterodimers interact with an H3/H4 tetramer to form the histone octamer. (1,2) Histone H2B is also modified by various enzymes and can act as a substrate for them. These modifications have been shown to be important in gene reg4ation.
View Histone H2B Human, Recombinant on New England Biolabs’s website- Histone H2B Human, Recombinant