1540
Isoform C beta 2 , an unusual form of the bovine catalytic subunit of cAMP - dependent protein kinase .
 Isoform C beta 2, cAMP - dependent protein kinase
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 Isoform C beta 2, cAMP - dependent protein kinase