MRT199665 is an effective and ATP-competitive, selective MARK/SIK/AMPK inhibitor (IC50s of 2/2/3/2 nM, 10/10 nM, and 110/12/43 nM for MARK1/MARK2/MARK3/MARK14, AMPKα1/AMPKα2, and SIK1/SIK2/SIK3, respectively). MRT199665 suppresses the phosphorylation of S
GDP-α-D-mannose disodium gives a competitive inhibition with respect to GTP (Ki 14.7 μM) and an uncompetitive inhibition with respect to mannose-1-P (Ki 115 μM).GDP-α-D-mannose disodium is the donor substrate for mannosyltransferases and the precursor of
K145 is inactive against SphK1 and other protein kinases. K145 induces cell apoptosis and has potently antitumor activity. K145 is a selective, substrate-competitive and orally active SphK2 inhibitor with an IC50 of 4.3 µM and a Ki of 6.4 µM.
BAY-707, a highly potent and selective substrate-competitive inhibitor of MTH1 (NUDT1) with an IC50 of 2.3 nM, is well-tolerated in mice and exhibits a favorable pharmacokinetic (PK) profile compared to other MTH1 compounds. However, it demonstrates a clear lack of anticancer efficacy both in vitro and in vivo[1].