Alternative Enhancer Usage and Targeted Polycomb Marking Hallmark Promoter Choice during T Cell Differentiation

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Maqbool, Muhammad, Ahmad | Pioger, Léo | El Aabidine, Amal, Zine | Karasu, Nezih | Molitor, Anne, Marie | Dao, Lan, T M | Charbonnier, Guillaume | van Laethem, Francois | Fenouil, Romain | Koch, Frederic | Lacaud, Georges | Gut, Ivo | Gut, Marta | Amigorena, Sebastian | Joffre, Olivier | Sexton, Thomas | Spicuglia, Salvatore | Andrau, Jean-Christophe

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International audience. Graphical Abstract Highlights d Active T cell p-enhancers are highly dynamic during differentiation d Enhancer diversity might function to select specific isoform expression d Loss of H3K27me3 combined with enhancer gain hallmark T cell identity d Promoter choice is regulated by the PRC2 polycomb complex during differentiation Correspondence muhammad.maqbool@manchester.ac. uk (M.A.M.), jean-christophe.andrau@igmm.cnrs.fr (J.-C.A.) In Brief Development and activation of T lymphocytes are coordinated by lineage-specific transcriptional programs. Here, Maqbool et al. performed a wide epigenomic and transcriptional analysis of mouse T cell differentiation. These data provide new insights into the role of multiple enhancers and PRC2 in controlling alternative promoter choice during differentiation.

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