fetuin, fetal bovine serum

Fetuin (Fetal Bovine Serum) is a glycoprotein purified from foetal bovine serum, primarily employed as an additive in cell culture to promote cell adhesion and growth. Fetuin is the protein product of the AHSG gene, naturally occurring in serum and extracellular fluids. It inhibits calcification and cysteinopeptidases, antagonises TGF-β, reduces insulin sensitivity, and more.