Add this high-quality human recombinant transforming growth factor beta 1 (TGF-β1) to your cell culture workflow. TGF-β1 binds to serine-threonine kinase type I and II receptors and regulates diverse cellular phenotypes through the SMAD2/3 signal transduction pathway. Use TGF-β1 in combination with basic fibroblast growth factor (bFGF) to support the maintenance of human pluripotent stem cell (hPSC) cultures (Amit et al. Biol Reprod, 2004). TGF-β1 has also been used to regulate exogenous cell signaling (Massagué Nat Rev Mol Cell Biol, 2000) and modulate immune cell homeostasis (Letterio & Roberts Annu Rev Immunol, 1998). Human recombinant TGF-ꞵ1 from STEMCELL comes lyophilized with ≥ 95% purity; EC50 ≤ 0.5 ng/mL; endotoxin levels verified ≤ 1 EU/μg protein. Alternative names: Cartilage-inducing factor, Differentiation inhibiting factor, LAP, Latency-associated peptide, TGFB1, TGF-beta-1, Transforming growth factor β 1. Visit STEMCELL.com for more information.