Nucleosome is considered the
packaging unit of chromatin, its formed by the winding of DNA around four proteins
designated Histones ( proteins essentially constituted by lysine and arginine
that help in the winding of the DNA), this four proteins are H2A, H2B, H3 and H4.
Chromatin involves the histones in regular intervals,
in other words, a nucleosome is formed every 200 base pairs, and around 56
nucleotides involve the histones, which means there are approximately 146 base
pairs between each nucleosome.
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