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