7574
Studies in mammalian cells have correlated induction of inhibitory tyrosine 15 ( Y15 ) phosphorylation on p34cdc2 with the response to DNA damage .
 p34cdc2
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 p34cdc2