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    The Polycomb repressive complex 2 (PRC2) is an essential chromatin regulatory complex involved in repressing the transcription of diverse developmental genes. PRC2 consists of a core complex; possessing H3K27 methyltransferase activity and various associated factors that are important to modulate its function. During evolution, the composition of PRC2 and the functionality of PRC2 components have changed considerably. Here, we compare the PRC2 complex members of Drosophila and mammals and describe their adaptation to altered biological needs. We also highlight how the PRC2.1 subcomplex has gained multiple novel functions and discuss the implications of these changes for the function of PRC2 in chromatin regulation. © 2022. The Author(s).


    Sabrina Fischer, Lisa Marie Weber, Robert Liefke. Evolutionary adaptation of the Polycomb repressive complex 2. Epigenetics & chromatin. 2022 Feb 22;15(1):7

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    PMID: 35193659

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