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Histone H4 combines with Histone H3 to form the H3/H4 tetramer. Histone H4 is also modified by various enzymes and these modifications have been shown to be important in gene regulation.
Highly pure, recombinant protein
Mass confirmed by ESI-TOF MS
Tested for exonuclease, endonuclease and protease contamination
Histone H3 combines with Histone H4 to form the H3/H4 tetramer. Two H2A/H2B heterodimers interact with an H3/H4 tetramer to form the histone octamer (1,2). Histone H4 is also modified by various enzymes and can act as a substrate for them. These modifications have been shown to be important in gene regulation.
The protein concentration (1 mg/ml, 89 µM) is calculated using the molar extinction coefficient for Histone H4 (5120) and its absorbance at 280 nm (3,4). 1.0 A280 units = 2.2 mg/ml.
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