Which histone protein is not a part of histone octamer?

H_{2} A

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H_{3}

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H_{1}

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H_{4}

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Solution

The correct option is C $H_{1}$
C- Histone octamer is composed of 8 proteins, 2 copies of each of H2A, H2B, H3 & H4. DNA is wrapped around this octamer and it is connected to H1 histone which is fails to be a part of octamer. Hence, H1 histone protein is not a part of histone octamer.

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