17023
Through immunoblot assays , these compounds were shown to block the phosphorylation of the FGFR4 adaptor protein , FGFR substrate protein - 2 alpha ( FRS2 alpha ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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