20001
We show that the two cell types express identical levels of the C alpha catalytic subunit and comparable global cAMP - dependent protein kinase A ( PKA ) enzyme activity .
 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: cAMP