The SET1 complex selects actively transcribed target genes via multivalent interaction with CpG island chromatin by Brown, D, Di Cerbo, V, Feldmann, A, Ahn, J, Ito, S, Blackledge, N, Nakayama, M, McClellan, M, Dimitrova, E, Turberfield, A, Long, H, King, H, Kriaucionis, S, Schermelleh, L, Kutateladze, T, Koseki, H, Klose, R