Chk1-IN-5 is a highly effective inhibitor of checkpoint kinase 1 (Chk1), which hinders the phosphorylation of Chk1 and effectively suppresses tumor growth in a colon cancer xenograft model[1].
Compound PROTAC-2, also known as PROTAC Chk1 degrader-1, is a potent degrader of Chk1, exhibiting a DC50 of 1.33 μM. It is utilized in cancer research [1].
MRT00033659 is an effective broad-spectrum kinase inhibitor of CK1 (IC50=0.9 µM for CK1δ) and CHK1 (IC50=0.23 µM). MRT00033659 is a pyrazolo-pyridine analogue. It also induces p53 pathway activation and E2F-1 destabilization.