Chicken Anti-Human AMH(pro-region) polyclonal antibody for ELISA. MIS, also known as anti-Müllarian hormone (AMH), belongs to the TGF-beta superfamily. It is produced by the fetal testis and plays a central role in male sex differentiation. Postnatally, MIS is expressed in both the testis and the ovary, where it also has a regulatory role in gonadal functions.