However , as this study shows , when they are bound to PARP inhibitors , PARP1 and PARP2 become trapped on DNA .
Under normal conditions , PARP1 and PARP2 are released from DNA once the repair process is underway .
As this study shows , when they are bound to PARP inhibitors , PARP1 and PARP2 become trapped on DNA .
Under normal conditions , PARP1 and PARP2 are released from DNA once the repair process is underway .