Cell permeable, potent, selective and ATP-competitive inhibitor of TGF-β RI kinase (IC50=51nM). Displays ~15-fold greater selectivity over p38α MAPK (IC50=740nM). Inhibits TGF-β-dependent cellular growth (IC50=89nM in NIH 3T3 mouse fibroblasts) and transcription activation (IC50=47nM in mink lung cells).
The reconstituted solution can be further diluted in sodium acetate solution and stored at +4°C for up to two weeks. Below 10μg/ml, 0.5% BSA or serum should be added.