(center map)
(1) HDAC1@nucleus+DP1*:E2F1:pRB*@nucleus+SWI/SNF@nucleus -> DP1*:E2F1:HDAC1:SWI/SNF:pRB*@nucleus
(2) SUV39H1@nucleus+DP1*:E2F1:HDAC1:SWI/SNF:pRB*@nucleus -> DP1*:E2F1:HDAC1:SUV39H1:SWI/SNF:pRB*@nucleus
(3) DP1*:E2F1:HDAC1:SWI/SNF:pRB*@nucleus - CDK3:cyclin C*@nucleus -> DP1*:E2F1:HDAC1:SWI/SNF:pRB*__pho@nucleus
(4) DP1*:E2F1:HDAC1:HP1gamma*:SUV39H1:SWI/SNF:pRB*@nucleus -> DP1*:E2F1:HDAC1:SWI/SNF:pRB*@nucleus+HP1gamma*:SUV39H1@nucleus