PARP

NMS-P515 is a potent inhibitor of PARP-1 both in biochemical (Kd: 0.016 μM) and cellular (IC50: 0.027 μM) assays.

PARP14 inhibitor H10, compound H 10, is a selective inhibitor against PARP14 (IC50=490 nM), over other PARPs (??24 fold over PARP1). PARP14 inhibitor H10 induces caspase-3/7-mediated cell apoptosis.

Tankyrase-IN-2 (compound 5k) is a potent, selective, and orally active tankyrase inhibitor (IC50s of 10, 7, and 710 nM for TNKS1, TNKS2 as well as PARP1, respectively).

RK-287107 is a potent and specific tankyrase inhibitor with IC50s of 14.3 and 10.6 nM for tankyrase-1 and tankyrase-2, respectively. RK-287107 blocks colorectal cancer cell growth.

PARP-2-IN-1 is a potent and selective PARP-2 inhibitor with an IC50 of 11.5 nM.

BRCA1-IN-1 is a novel small-molecule-like BRCA1 inhibitor with IC50 and Ki of 0.53 μM and 0.71 μM, respecrively.

BRCA1-IN-2 (compound 15) is a cell-permeable protein-protein interaction (PPI) inhibitor for BRCA1 with an IC50 of 0.31 μM and a Kd of 0.3 μM, which shows antitumor activities via the disruption of BRCA1 (BRCT)2/protein interactions.