Mps1/TTK-IN-1 (Compound cpd-5), a derivative of NMS-P715, is a Mps1 kinase inhibitor with an IC50 of 9.2 nM and a Kd of 1.6 nM. Mps1/TTK-IN-1 specifically targets the ATP-binding pocket of the Mps1 kinase. Mps1/TTK-IN-1 maintains inhibitory activity against Mps1 drug-resistant mutants (C604Y, C604W) with IC50 values of 170 and 19 nM and Kd values of 471 and 349 nM. Mps1/TTK-IN-1 can block the phosphorylation of kinetochore protein KNL1 mediated by Mps1, interfere with the spindle assembly checkpoint function, prevent the correct separation of chromosomes, and thereby inhibit the mitosis and proliferation of tumor cells.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.