(1) DP2*:E2F4:p130*@cell -t-> DP2*:E2F4:p130*@nucleus (2) HDAC1:SIN3B@nucleus+DP2*:E2F4:p130*@nucleus+SUV39H1@nucleus -> DP2*:E2F4:HDAC1:SIN3B:SUV39H1:p130*@nucleus