As far as I know, there’s no receptor for GAGs on cells to mediate their uptake specifically. Usually they hitchhike on some other protein that has a specific r

As far as I know, there’s no receptor for GAGs on cells to mediate their uptake specifically. Usually they hitchhike on some other protein that has a specific receptor/co-receptor. Heparin is actually a sulfated polysaccharide, and not like those other drugs that you might be thinking about.