Transforming growth factor- beta (TGF- beta ) is an essential regulator in the processes of development, cell proliferation, and extracellular matrix deposition. TGF- beta regulates cellular processes by binding to three high-affinity cell surface receptors: TGF- beta receptor type I (TGF- beta -RI), TGF- beta receptor type II (TGF- beta -RII), and TGF- beta beta receptor type III (TGF- beta -RIII). TGF- beta RII is consists of a C-terminal protein kinase domain and an N-terminal ectodomain and belongs to transforming growth factor-beta (TGF- beta ) receptor subfamily. TGF- beta RII has a protein kinase domain which can form a heterodimeric complex with another receptor protein and bind TGF-beta. This receptor/ligand complex phosphorylates protein will enter the nucleus and regulate the transcription of a subset of genes related to cell proliferation.
Lyophilized protein should be stored at -20˚C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7˚C for 2-7 days. Aliquots of reconstituted samples are stable at -20˚C for 3 months.