The inhibin beta A subunit joins the alpha subunit to form a pituitary FSH secretion inhibitor. Inhibin has been shown to regulate gonadal stromal cell proliferation negatively and to have tumor-suppressor activity. In addition , serum levels of inhibin have been shown to reflect the size of granulosa-cell tumors and can therefore be used as a marker for primary as well as recurrent disease. Because expression in gonadal and various extragonadal tissues may vary severalfold in a tissue-specific fashion , it is proposed that inhibin may be both a growth/differentiation factor and a hormone. Furthermore , the beta A subunit forms a homodimer , activin A , and also joins with a beta B subunit to form a heterodimer , activin AB , both of which stimulate FSH secretion. Finally , it has been shown that the beta A subunit mRNA is identical to the erythroid differentiation factor subunit mRNA and that only one gene for this mRNA exists in the human genome.

ACV-A;Activin Beta A Beta A Homodimer

Human

PBS with 0.04% Proclin 300; 50% glycerol; pH 7.5; PBS with 0.04% Proclin 300; 1% protective protein; 50% glycerol; pH 7.5

-20℃

12个月