The INHBA protein plays a key role in regulating pituitary function by regulating follicle-stimulating hormone secretion together with activin. Its broad effects span a variety of physiological processes, including hormone secretion, germ cell development, erythrocyte differentiation, insulin secretion, nerve cell survival, embryonic development, and bone growth, depending on unique subunit composition. Animal-Free Activin A Protein, Human/Mouse/Rat (His) is the recombinant human, rat, mouse-derived animal-FreeActivin A protein, expressed by E. coli , with C-His labeled tag. This product is for cell culture use only.