Abstract:Histone variants, which can be expressed outside of S-phase and deposited DNA synthesis-independently, provide replacement histones in terminally post-mitotic cells, including neurons. Histone variants can also serve active roles in gene regulation by modulating chromatin states or enabling nucleosome turnover at regulatory regions. Here, we find that newborn cortical excitatory neurons substantially accumulate the histone H3 variant H3.3 immediately post-mitosis. Co-deletion of H3.3-encoding genes H3f3a and H… Show more
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