Insulin-like Growth, Factor-Binding Protein3, IBP-3, Growth-hormone-dependent binding protein
IGF-BP3 is a 30 kDa cysteine-rich secreted protein. It is the major IGF binding protein present in the plasma of human and animals and it is also found in a-granules of platelets. In addition to its ability to modulate the activity of IGF-I and IGF-II, I