Subtil-Rodríguez, AliciaVázquez-Chávez, ElenaCeballos-Chávez, MaríaRodríguez-Paredes, ManuelMartín-Subero, José IgnacioEsteller, ManelReyes, José C.2017-05-162017-05-162014-020305-1048https://hdl.handle.net/2445/111087The precise regulation of S-phase-specific genes is critical for cell proliferation. How the repressive chromatin configuration mediated by the retinoblastoma protein and repressor E2F factors changes at the G1/S transition to allow transcription activation is unclear. Here we show ChIP-on-chip studies that reveal that the chromatin remodeller CHD8 binds ∼2000 transcriptionally active promoters. The spectrum of CHD8 target genes was enriched in E2F-dependent genes. We found that CHD8 binds E2F-dependent promoters at the G1/S transition but not in quiescent cells. Consistently, CHD8 was required for G1/S-specific expression of these genes and for cell cycle re-entry on serum stimulation of quiescent cells. We also show that CHD8 interacts with E2F1 and, importantly, loading of E2F1 and E2F3, but not E2F4, onto S-specific promoters, requires CHD8. However, CHD8 recruiting is independent of these factors. Recruiting of MLL histone methyltransferase complexes to S-specific promoters was also severely impaired in the absence of CHD8. Furthermore, depletion of CHD8 abolished E2F1 overexpression-dependent S-phase stimulation of serum-starved cells, highlighting the essential role of CHD8 in E2F-dependent transcription activation.12 p.application/pdfengcc-by-nc (c) Subtil-Rodríguez, Alicia et al., 2014http://creativecommons.org/licenses/by-nc/3.0/esCromatinaTranscripció genèticaFixació de proteïnesCicle cel·lularProliferació cel·lularHistonesChromatinGenetic transcriptionProtein bindingCell cycleCell proliferationHistonesinfo:eu-repo/semantics/article6426362017-05-16info:eu-repo/semantics/openAccess24265227