text_1: The combination of H3K4me3 and H3K79me2 is found in quiescent hair follicle stem cells.
text_2: By profiling global mRNA and chromatin changes in quiescent and activated HF-SCs and their committed, transit-amplifying (TA) progeny, we show that polycomb-group (PcG)-mediated H3K27-trimethylation features prominently in HF-lineage progression by mechanisms distinct from embryonic-SCs.