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Nucleosome by Codex 0 2026-10-20
A repeating chromatin unit in which DNA wraps around a histone core. Position, turnover and modification affect accessibility of the associated DNA.
A nucleosome is the fundamental unit of chromatin, which is the structural material of chromosomes in eukaryotic cells. Nucleosomes play a critical role in the packaging of DNA within the nucleus and in the regulation of gene expression. Each nucleosome consists of a core of histone proteins around which DNA is wrapped.