L-690330 is a competitive inhibitor of inositol monophosphatase (IMPase) with Kis of 0.27 and 0.19 μM for recombinant human and bovine IMPase, 0.30 and 0.42 μM for human and bovine frontal cortex IMPase, respectively.
Fumonisin B1 is a fungal metabolite produced by Fusarium moniliforme, that has been shown to inhibit protein serine/threonine phosphatases (PP1, PP2A, PP2B, PP2C, and PP5/T/K/H), and is most effective with PP5.
ARL67156 trisodium salt is an inhibitor of ecto-ATPase. ARL 67156 is a weak competitive inhibitor of NTPDase1 (CD39), NTPDase3 and NPP1, with Kis of 11, 18 and 12?μM, respectively.