k1 k2 Y k3 Y C kcdc25 preMPF k3 Y C k2 M kwee M kwee M k2 preMPF kcdc25 preMPF k25 M Cdc25 Km25 Cdc25 k25r Cdc25P Km25r Cdc25P k25r p kw M Wee1 Kmw Wee1 kwr Wee1P Kmwr Wee1P kwr p kie M IE Kmie IE kier IEP Kmier IEP kap IEP APC Kmap APC kapr APC_ Kmapr APC_ Cdc2tot M preMPF Cdc25tot Cdc25P Wee1tot Wee1 IEtot IEP APCtot APC_ s R q V2 APC V2_ APC_ Vwee Wee1P Vwee_ Wee1 V25 Cdc25 V25_ Cdc25P