Active ATM activates p53.
Active p53 activates Wip1.
Active p53 activates Mdm2.
Active Wip1 inactivates p53.
Active Wip1 inactivates ATM.
Active Mdm2 inactivates p53.
HIPK2 inactivates Wip1.
P14ARF inactivates Mdm2.
Active ATM activates ATM.
