7TM receptors Create Talk0 Category page This page needs content. You can help by adding a sentence or a photo! Add to this page! “ Smoothened is a G protein-coupled receptor protein encoded by the SMO gene of the hedgehog... Smoothened Pages in category "7TM receptors" This category contains only the following page. S Smoothened Retrieved from "http://psychology.wikia.com/wiki/Category:7TM_receptors"