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  1. Copilot Answer
    SymbolINHBA
    Alt. symbolsactivin A
    NCBI gene3624
    HGNC6066
    Structure

    The activin and inhibin protein complexes are both dimeric in structure, and, in each complex, the two monomers are linked to one another by a single disulfide bond. In addition, both complexes are derived from the same f… See more

    Function

    Activin is produced in the gonads, pituitary gland, placenta, and other organs:
    • In the ovarian follicle, activin increases FSH binding and FSH-induced aromatization. It participates in androgen synthesis e… See more

    Mechanism of action

    As with other members of the superfamily, activins interact with two types of cell surface transmembrane receptors (Types I and II) which have intrinsic serine/threonine kinase activities in their cytoplasmic domains: … See more

    Clinical significance

    Activin A is more plentiful in the adipose tissue of obese, compared to lean persons. Activin A promotes the proliferation of adipocyte progenitor cells, while inhibiting their differentiation into adipocytes. Activin A also increa… See more

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