it is apparent now that inhibin , which itself consists of a dimer of two different subunits , alpha and beta , is a member of a much larger family of ( glyco ) protein hormones and growth factors , which also includes mullerian-inhibiting substance , transforming growth factor-beta , erythroid differentiation factor , an insect protein that plays an important role in differentiation , and the dimer of two inhibin beta-subunits , activin .
C0018284
growth factors
C0050668
activin