tgf-beta regulates the level and molecular size of these proteoglycans by acting simultaneously at two levels : it elevates the biosynthetic rate of the 45-kda proteoglycan core protein in a cycloheximide- and actinomycin d-sensitive manner , and it induces an increase in the molecular mass of the glycosaminoglycan chains .
C0220781
biosynthetic
C1700419
proteoglycan core protein