(center map)
(1) DP2*:E2F4:HDAC1:SIN3B:SUV39H1:p130*@nucleus - CDK2_Thr160_pho:cyclin E1*@nucleus - CDK6_Thr_pho:cyclin D1*:p27Kip1*@nucleus - CDK4_Thr172_pho:cyclin D1*:p27Kip1*@nucleus - CDK6:cyclin D1*:p21Cip*@nucleus - CDK4:cyclin D1*:p21Cip*@nucleus -> DP2*:E2F4:HDAC1:SIN3B:SUV39H1:p130*__pho@nucleus
(2) DP1*:E2F1:SWI/SNF:pRB*__pho__pho@nucleus - CDK2_Thr160_pho:cyclin E1*@nucleus -?> DP1*:E2F1:pRB*__pho__pho__pho@nucleus+SWI/SNF__pho@nucleus
(3) CDK2:cyclin E1*@nucleus - CDK7_Thr170_pho:MNAT1:cyclin H*@nucleus -> CDK2_Thr160_pho:cyclin E1*@nucleus
(4) p27Kip1*@nucleus - CDK2_Thr160_pho:cyclin E1*@nucleus -> p27Kip1*_Thr187_pho@nucleus
(5) CDK2_Thr160_pho:cyclin E1*@nucleus - GSK3B@nucleus -> CDK2_Thr160_pho:cyclin E1*_Thr380_pho@nucleus
(6) CDK2_Thr160_pho:cyclin E1*@nucleus+p21Cip*@nucleus -> CDK2_Thr160_pho:cyclin E1*:p21Cip*@nucleus
(7) CDK2_Thr160_pho:cyclin E1*@nucleus+p107*@nucleus -> CDK2_Thr160_pho:cyclin E1*:p107*@nucleus
(8) p130*__pho@nucleus+CDK2_Thr160_pho:cyclin E1*@nucleus -> CDK2_Thr160_pho:cyclin E1*:p130*__pho@nucleus