[The role of steroid-binding glycoproteins in human blood in transmitting the hormonal signal to the cell].

The data on interaction of specific steroid-binding glycoproteins of blood plasma and of their steroid-hormone complexes with the plasma membranes of various hormone target tissues suggests that these glycoproteins play an active role in the transport of steroid hormones into the target cells. Both polypeptide and carbohydrate components of the steroid-binding glycoproteins are involved in the formation of determinants for the membrane recognition of hormone-glycoprotein complexes. This causes a modulation of the steroid hormone action on various tissues due to modifications of the glycoprotein carbohydrate structures.