Product Description: The product contains the polyhedrin protein co-crystalized with Human FGF-20. Fibroblast Growth Factor 20 (FGF-20) is a mitogen and survival factor for nerve and mesenchymal cells. FGF-9 functions as an autocrine and paracrine factor to support the growth and survival of motor neurons and prostate tissue. FGF-9 expression in the gonad is also necessary for sex determination.