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