The Polycomb group proteins bind throughout the INK4A-ARF locus and are disassociated in senescent cells
Genes & Development (2007) - Comment
pubmed: 17344414  doi: 10.1101/gad.415507  issn: 0890-9369  issn: 1549-5477 

Adrian P. Bracken, Daniela Kleine-Kohlbrecher, Nikolaj Dietrich, Diego Pasini, Gaetano Gargiulo, Chantal Beekman, Kim Theilgaard-Mönch, Saverio Minucci, Bo T. Porse, Jean-Christophe Marine, Klaus H. Hansen, Kristian Helin