3948
Functional studies demonstrated that transcriptional activation of a plasmid containing multimerized kappaB sites by p65 was inhibited by agents that elevate cAMP and by overexpression of the catalytic subunit of PKA .
 PKA, plasmid, catalytic subunit, p65, multimerized kappaB sites
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 PKA, plasmid, catalytic subunit, p65, multimerized kappaB sites