Tautomycin is a potent and specific protein phosphatases 1 and 2A inhibitor (Kiapp of 0.16 nM and 0.4 nM for PP1 and PP2A, respectively), and is an antifungal antibiotic isolated from the bacterium Streptomyces verticillatus.
3BrB-PP1 is an ATP-competitive analog that exhibits specific inhibitory activity towards protein kinase. It is effective in inhibiting protein kinase with mutations in the ATP-binding pocket, specifically the mutation of Thr97 within Sty1's ATP-binding pocket.
SMAPP1 is an activator of protein phosphatase 1 (PP1). SMAPP1 induces PP1 activity in vitro and activates latent HIV-1 provirus in cultured and primary T cells.
NPP1-IN-1 is a highly potent inhibitor of NPP enzymes, effectively inhibiting NPP1 with an IC 50 value of 0.15 μM and NPP3 with an IC 50 value of 40 μM [1].