Nucleosome (IMAGE)
Caption
DNA (gray) is typically wrapped tightly around proteins called histones (colored) to form a nucleosome, a structure that condenses DNA strands to fit in a cell's nucleus. A new method allows scientists to identify specialized proteins called nucleosome-displacing factors that unwrap these nucleosomes, making the usually dense DNA more accessible for gene expression and other functions.
Credit
Karolin Luger
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