30365
We also found that the effect of haloperidol on Ser240 / 244 phosphorylation was prevented by functional inactivation of dopamine - and cAMP - regulated phosphoprotein of 32 kDa ( DARPP - 32 ) , an endogenous inhibitor of protein phosphatase - 1 ( PP - 1 ) .
 Chemical: haloperidol; Chemical: Ser240; Chemical: dopamine; Chemical: cAMP
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: haloperidol; Chemical: Ser240; Chemical: dopamine; Chemical: cAMP