20455
In addition , AGAP2 formed a complex with endogenous Erk and overexpression of AGAP2 potentiated Erk phosphorylation induced by beta 2 - adrenergic receptors .
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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:
 None