Methods of identifying {HEAD ~ compositions} which affect {TAIL ~ hedgehog activity} based on inhibition of cholesterol modification of hedgehog protein are described 
affect
Methods of identifying { HEAD ~ compositions } which affect { TAIL ~ hedgehog activity } based on inhibition of cholesterol modification of hedgehog protein are described
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH