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The ELAVL1 protein binds to GPCR mRNAs and recognizes a cognate sequence located at the 3 ' - UTR of ADRB2 , proteinase - activated receptor and M2 , M3 muscarinic acetylcholine receptor mRNAs [ 24 ] , [ 25 ] .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
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