Biologically Active Substance
nucleosome
nu·cle·o·some [ noo-klee-uh-sohm, nyoo- ]
Subclass of:
Chromatin
Definitions related to nucleosomes:
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A DNA packaging complex comprised of approximately 200 base pairs of DNA wound around a protein core, which is formed by an octomer of histones. The histone octomer includes two dimers of histones H2A and H2B that surround a tetramer consisting of two molecules of histone H3 and two molecules of histone H4.NCI ThesaurusU.S. National Cancer Institute, 2021
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Complex of histone and DNA in eukaryotic cells, seen in the electron microscope as beadlike bodies on a string of DNA.CRISP ThesaurusNational Institutes of Health, 2006
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The repeating structural units of chromatin, each consisting of approximately 200 base pairs of DNA wound around a protein core. This core is composed of the histones H2A, H2B, H3, and H4.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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