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We identified 154 proteins that were differentially phosphorylated , and systematic depletion of each of these differentially phosphorylated proteins by small interfering RNA ( siRNA ) identified at least 10 potential regulators of recovery .
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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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