Tags: Protein.
Growth/differentiation factor 9 is a protein that in humans is encoded by the GDF9 gene.Growth factors synthesized by ovarian somatic cells directly affect oocyte growth and function. Growth differentiation factor-9 (GDF9) is expressed in oocytes and is thought to be required for ovarian folliculogenesis. GDF9 is a member of the transforming growth factor-beta (TGFβ) superfamily.GDF9 plays an important role in the development of primary follicles in the ovary.