Now, the reason we essentially add these sugar molecules onto the protein component is to basically increase the stability of erythropleton within the blood plasma. And this decreases the likelihood that the kidneys are going to remove this hormone from the blood plasma. So glycosylation of Erythropolietin helps to stabilize this structure in the blood plasma. And what that means is it decreases the likelihood of the kidneys are going to remove this protein, the glycoprotein, from the blood plasma. That means this glycoprotein can basically stimulate the production of red blood cells. Now, urethraplatin is not the only glycoprotein that act as a hormone inside our body.