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    GlossaryPolycomb Repressive Complex 2 (PRC2)

    regulates gene expression by modifying chromatin structure

    Polycomb Repressive Complex 2 (PRC2) is a group of proteins that play a crucial role in regulating gene expression by modifying chromatin, the material that makes up chromosomes. PRC2 adds a specific chemical mark to histones (proteins around which DNA is wrapped), leading to the repression of genes that are not needed at certain times or in certain cell types. This process is essential for proper development and cellular differentiation.

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